Module No.
Getting Acquainted Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to read this manual carefully. • Be sure to keep all user documentation handy for future reference. Applications The built-in sensors of this watch measure barometric pressure, temperature and altitude. Measured values are then shown on the display. Such features make this watch useful when hiking, mountain climbing, or when engaging in other such outdoor activities.
Keep the watch exposed to bright light l l l l l l l l l l l Bright light Solar cell The electricity generated by the solar cell of the watch is stored by a built-in battery. Leaving or using the watch where it is not exposed to light causes the battery to run down. Make sure the watch is exposed to light as much as possible. • When you are not wearing the watch on your wrist, position the face so it is pointed at a source of bright light.
• The watch continues to operate, even when it is not exposed to light. Leaving the watch in the dark can cause the battery to run down, which will cause some watch functions to be disabled. If the battery goes dead, you will have to re-configure watch settings after recharging. To ensure normal watch operation, be sure to keep it exposed to light as much as possible. Battery charges in the light. Solar cell (Converts light to electrical power.) Battery discharges in the dark.
• The actual level at which some functions are disabled depends on the watch model. • Frequent display illumination can run down the battery quickly and require charging. The following guidelines give an idea of the charging time required to recover from a single illumination operation.
Warning! • The measurement functions built into this watch are not intended for taking measurements that require professional or industrial precision. Values produced by this watch should be considered as reasonable representations only. • CASIO COMPUTER CO., LTD. assumes no responsibility for any loss, or any claims by third parties that may arise through the use of this watch.
About This Manual (Light) (Light) • Button operations are indicated using the letters shown in the illustration. • Each section of this manual provides you with the information you need to perform operations in each mode. Further details and technical information can be found in the “Reference” section. • To ensure that this watch provides you with the years of service for which it is designed, be sure to carefully read and follow the instructions under “Operating Precautions” and “User Maintenance”.
Contents General Guide ................................................................................. E-10 Radio-controlled Atomic Timekeeping ........................................... E-12 Altimeter .......................................................................................... E-34 Recalling Altitude Data .................................................................... E-52 Barometer/Thermometer ................................................................. E-59 World Time .........
Procedure Lookup The following is a handy reference list of all the operational procedures contained in this manual. To specify your Home City ............................................................. E-13 To perform manual receive ............................................................. E-27 To turn auto receive on and off ....................................................... E-29 To check the latest signal reception results ................................. E-30 To view your current altitude ..
To clear the historical record ......................................................... E-58 To take barometric pressure and temperature readings ............. E-59 To view the time in another city ...................................................... E-67 To toggle a city code time between Standard Time and Daylight Saving Time ......................................................... E-68 To measure times with the stopwatch ...........................................
To turn the button operation tone on and off .............................. E-104 To recover from the sleep state .................................................... E-106 To turn Power Saving on and off .................................................. E-107 To calibrate the pressure sensor and the temperature sensor ....
General Guide • The illustration below shows which buttons you need to press to navigate between modes. • In any mode, press L to illuminate the display. Barometer/ Thermometer Mode ▲ Countdown Timer Mode Stopwatch Mode Alarm Mode ▲ ▲ E-10 Press D.
• You can press the C button to go directly from the Timekeeping Mode to the Altimeter Mode. To go to the Altimeter Mode from the Barometer/ Thermometer, World Time, Stopwatch, Countdown Timer, Alarm, or Data Recall Mode, first enter the Timekeeping Mode and then press the C button. Timekeeping Mode Altimeter Mode ▲ Press C. ▲ Press D.
Radio-controlled Atomic Timekeeping This watch receives a time calibration signal and updates its time setting accordingly. • This watch is designed to pick up the time calibration signals transmitted in Germany (Mainflingen), England (Anthorn), the United States (Fort Collins), China (Shangqiu), and Japan (Fukushima, Fukuoka/Saga). Current Time Setting This watch adjusts its time setting automatically in accordance with a time calibration signal.
• The U.S. time calibration signal can be picked up by the watch while in North America. The term “North America” in this manual refers to the area that consists of Canada, the continental United States, and Mexico. To specify your Home City ll 1. In the Timekeeping Mode, hold down A until the city code starts to flash. This indicates the lll l ll setting screen. 2. Press E (east) and B (west) to select the city code you want to use as your Home City.
DEN :Denver, El Paso, Edmonton, Culiacan CHI :Chicago, Houston, Dallas/Fort Worth, New Orleans, Winnipeg, Mexico City NYC :New York, Detroit, Miami, Boston, Montreal 3. Press A to exit the setting screen. • Normally, your watch should show the correct time as soon as you select your Home City code. If it does not, it should adjust automatically after the next auto receive operation (in the middle of the night). You also can perform manual receive (page E-27) or you can set the time manually (page E-96).
Time Calibration Signal Reception There are two different methods you can use to receive the time calibration signal: auto receive and manual receive. • Auto Receive With auto receive, the watch receives the time calibration signal automatically up to six times a day. When any auto receive is successful, the remaining auto receive operations are not performed. For more information, see “About Auto Receive” (page E-22).
Important! • When getting ready to receive the time calibration signal, position the watch as shown in the nearby illustration, with its 12 o’clock side facing towards a window. This watch is designed to receive a time calibration signal late at night. Because of this, you should place the watch near a window as shown in the illustration when you take it off at night. Make sure there are no metal objects nearby. 12 o’clock or • Make sure the watch is facing the right way.
• Proper signal reception can be difficult or even impossible under the conditions listed below. Inside or among buildings Inside a vehicle Near household appliances, office equipment, or a mobile phone Near a construction site, airport, or other sources of electrical noise Near hightension power lines Among or behind mountains • Signal reception normally is better at night than during the day.
• The time calibration signal the watch will attempt to pick up depends on its current Home City code setting as shown below. Home City Code LON, PAR, BER, ATH HKG TPE, TYO HNL*, ANC*, LAX, DEN, CHI, NYC Transmitter Anthorn (England) Mainflingen (Germany) Shangqiu City (China) Fukushima (Japan) Fukuoka/Saga (Japan) Fort Collins, Colorado (the United States) Frequency 60.0 kHz 77.5 kHz 68.5 kHz 40.0 kHz 60.0 kHz 60.
Approximate Reception Ranges 1,500 kilometers Anthorn 500 kilometers Mainflingen The Anthorn signal is receivable within this area.
500 kilometers Fukuoka/Saga 1,000 kilometers 500 kilometers Fukushima 1,000 kilometers Signals are receivable in the Taiwan area when reception conditions are good.
• Signal reception may not be possible at the distances noted below during certain times of the year or day. Radio interference also may cause problems with reception.
About Auto Receive The watch receives the time calibration signal automatically up to six times a day. When any auto receive is successful, the remaining auto receive operations are not performed. The reception schedule (calibration times) depends on your currently selected Home City, and whether standard time or Daylight Saving Time is selected for your Home City.
Your Home City HKG TYO TPE NYC CHI DEN LAX Standard Time Standard Time Auto Receive Start Times 1 2 3 4 5 6 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am Standard Time and Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am Daylight Saving Time *Next day Note • When a calibration time is reached, the watch will receive the calibration signal only if it is in either the Timekeeping Mode or World Time Mode.
• The watch receives the calibration signal for two to seven minutes everyday when the time in the Timekeeping Mode reaches a calibration time. Do not perform any button operation within seven minutes before or after the calibration times. Doing so can interfere with correct calibration. • Remember that reception of the calibration signal depends on the current time in the Timekeeping Mode.
About the Signal Indicator The signal indicator shows the strength of the calibration signal being received. For best reception, be sure to keep the watch in a location where signal strength is strongest. The signal indicator is displayed while an auto or manual receive operation is in progress.
• Use the signal indicator as a guide for checking signal strength and for finding the best location for the watch during signal receive operations. • Following reception of the time calibration signal and calibration of the watch’s time setting, the Level 3 signal indicator will remain on the display in all modes. The Level 3 signal indicator will not be displayed if signal reception was unsuccessful or after you adjust the current time setting manually.
To perform manual receive Receiving lll lll lll lll Receive successful 1. In the Timekeeping Mode, press E to display the last successful receive time and date screen (page E-30). 2. Press E to enter the Receive Mode. 3. Hold down E for about two seconds until starts to flash on the display. • Time calibration signal reception takes from two to seven minutes. Take care that you do not perform any button operations or move the watch during this time.
Receive failed If there was a previously successful reception If no reception was successful E-28 • If the latest reception fails but a previous reception was successful, an indicator ( ) will be on the display. The watch will enter the Receive Mode without changing the time setting if you press E or if you do not perform any button operation for about one or two minutes. Note • To interrupt a receive operation and return to the Receive Mode, press E.
To turn auto receive on and off lll ll llll lll llll lll lll l On/Off status 1. In the Timekeeping Mode, press E to display the last successful receive time and date screen (page E-30). 2. Hold down A until the current auto receive setting (ON or OFF) starts to flash. This is the setting screen. • Note that the setting screen will not appear if the currently selected Home City is one that does not support time calibration reception. 3. Press E to toggle auto receive on (ON) and off (OFF). 4.
To check the latest signal reception results Press E to view the last successful receive time and date. Press E again to return to the previous screen.
Signal Reception Troubleshooting Check the following points whenever you experience problems with signal reception. Problem Probable Cause What you should do Cannot perform • The watch is not in the Receive • Enter the Receive Mode manual receive. Mode. and try again. • Select LON, PAR, BER, • Your current Home City is not one of the following: LON, PAR, ATH, HKG, TPE, TYO, BER, ATH, HKG, TPE, TYO, LAX, DEN, CHI, or NYC as your Home City LAX, DEN, CHI, or NYC (page E-13).
Problem Probable Cause What you should do Auto receive is • Even if receive is successful, the •Check to make sure the turned on, but Level 3 signal indicator watch is in a location the Level 3 disappears from the display where it can receive the signal indicator each day when the first auto signal (page E-16). does not receive operation of the day is appear on the performed. display. • Time data (hour, minutes, seconds) only was received during the last receive operation.
Problem Probable Cause Time setting is • If the time is one hour off, the incorrect DST setting may be incorrect. following signal • The Home City code setting is not correct for the area where reception. you are using the watch. What you should do • Change the DST setting to Auto DST (page E-100). • Select the correct Home City code (page E-13). • For further information, see “Important!” (page E-16) and “Radio-controlled Atomic Timekeeping Precautions” (page E-108).
Altimeter The watch’s altimeter uses a pressure sensor to detect current air pressure, which is then used to estimate the current altitude based on ISA (International Standard Atmosphere) preset values. You can specify a reference altitude, which the watch will use to calculate your current altitude based on the value you specify. Altimeter functions also include storage of measurement readings in memory. Important! • This watch estimates altitude based on air pressure.
• Do not rely upon this watch for altitude readings or perform button operations while sky diving, hang gliding, or paragliding, while riding a gyrocopter, glider, or any other aircraft, or while engaging in any other activity where there is the chance of sudden altitude changes. • Do not use this watch for taking altitude readings in applications that demand professional or industrial level precision. • Remember that the air inside of a commercial aircraft is pressurized.
When you measure altitude using a reference altitude specified by you After you specify a reference altitude, the watch will use that value to convert the current barometric pressure reading to altitude. • When mountain climbing, you can specify a reference value in accordance with a marker B along the way or altitude information from a map. After that, altitude readings produced A 400 by the watch will be more accurate than they would without a reference altitude.
• For information about configuring settings for the altitude reading interval and duration, see “To specify the altitude reading interval” on page E-42. Important! • The procedure below simply displays a value indicating your current altitude, without recording it in watch memory. For information about recording altitude readings in watch memory, see “Saving Altitude Readings in Memory” (page E-43).
To view your current altitude Altitude change since Altimeter Mode stopwatch measurement started Altitude graph Current altitude Altimeter Mode stopwatch elapsed time E-38 1. In the Timekeeping Mode, use the C button to enter the Altimeter Mode. • The watch will start altitude measurement and display the result. • It can take up to four or five seconds for the first altitude reading to appear. 2.
Notes • Normally, displayed altitude values are based on the watch’s preset conversion values. You also can specify a reference altitude, if you want. See “Specifying a Reference Altitude” (page E-49). • Altitude is displayed in units of 5 meters. • The measurement range for altitude is –700 to 10,000 meters. • An altitude reading may be displayed be a negative value in cases where there is a reference altitude value specified or because of certain atmospheric conditions.
Altitude change indicator A ll ll ll ▲ ll ll ll A ll lll ll lll ll lll ll ▲ ll lll Altitude graph ll • In the Altimeter Mode, press the A button to toggle between the altitude graph and the altitude change indicator. The altitude change indicator shows the relative change between the latest altitude reading and the one before it.
More than +20m ll ll lll l ll l ll ll l ll Altitude change indicator +15m +10m +5m ±0m –5m –10m –15m Less than –20m E-41
To specify the altitude reading interval l ll lll llll ll lll lll l ll l l l l l llll ll l l l lll l Altitude measurement interval E-42 1. In the Altimeter Mode, hold down A for about two seconds until either OFF or the current reference altitude value (page E-50) starts to flash. This is the setting screen. 2. Press D. • This will cause the currently selected altitude reading interval (0'05" or 2'00") to flash on the display. 3. Press E to toggle the setting between 0'05" and 2'00".
Saving Altitude Readings in Memory The following describes the different types of records the watch creates for altitude readings. • You can take manual altitude readings, which are stored in memory along with the date (year, month, day) of the reading. There is enough memory to hold up to 20 altitude records (readings). • The Altimeter Mode has a stopwatch (which is independent of the watch’s Stopwatch Mode) that you can use to time your climbs.
To take a manual altitude reading 1. Press C to enter the Altimeter Mode (page E-11). 2. Hold down C for about one second until the watch beeps and REC flashes on the display. • This indicates that the current altitude reading, current date (year, month, day), and time are being saved to memory. 3. REC will stop flashing and the watch will return to the Altimeter Mode automatically after data save is complete. • Memory can hold up to 20 altitude records.
2. Press the E button to start and stop the Altimeter Mode stopwatch. • While an Altimeter Mode stopwatch operation is in progress, the display shows the elapsed time, current altitude, and the change in altitude since the start of the stopwatch operation. 3. After you are finished using the Altimeter Mode stopwatch, press the B button to reset it to all zeros.
Data High Altitude (MAX) Low Altitude (MIN) Total Ascent (ASC) Total Descent (DSC) Description Highest altitude reached during the current Altimeter Mode stopwatch session. Lowest altitude reached during the current Altimeter Mode stopwatch session. Total cumulative ascent during the current Altimeter Mode stopwatch session. Total cumulative descent during the current Altimeter Mode stopwatch session. • The maximum total ascent and total descent value is 99,995 meters.
• The watch takes altitude readings and calculates data as described below, and updates the current stopwatch session record accordingly. Note that measurement and data saving depend on whether or not the watch is in the Altimeter Mode.
How the historical record is updated The watch performs the following operations continually while an Altimeter Mode stopwatch operation is in progress. Data High Altitude Low Altitude Total Ascent Total Descent Update Operation The historical record value is compared with the current reading and the greater of the two is recorded in the historical record. The historical record value is compared with the current reading, and the lesser of the two is recorded in the historical record.
Other Altimeter Mode Features This section explains other features and settings that are available in the Altimeter Mode. Note that all of the information in this section applies to all types of Altimeter Mode measurements, unless specifically indicated otherwise. Specifying a Reference Altitude After you specify a reference altitude, the watch adjusts its air-pressure-toaltitude conversion calculation accordingly.
To specify a reference altitude lll l l l lll llll ll l l 1. In the Altimeter Mode, hold down A for about two seconds until either OFF or the current reference altitude value starts to flash. This is the setting screen. 2. Press E (+) or B (–) to change the current reference altitude value by 5 meters. • You can specify the reference altitude within the range of –10,000 to 10,000 meters.
Altitude graph Altitude Time The altitude graph shows Altimeter Mode measurement results. • The vertical axis of the graph represents altitude, and each dot stands for 10 meters. • The horizontal axis represents time, and the flashing dot in the rightmost column indicates the latest measurement result. For the first three minutes, each dot represents five seconds. After that, each dot represents two minutes.
Recalling Altitude Data Use the Data Recall Mode to view altitude records currently in memory, as well as the current Altimeter Mode stopwatch session record, and the historical record. Altitude records are created and stored by the watch in the Altimeter Mode. Data Screens The following explains the contents of each of the screens that appear in the Data Recall Mode.
Alternates at 1-second intervals.
Altitude Records These are records of the 20 newest altitude readings taken with the watch by you. If you take more than 20 readings, the watch will delete the oldest readings to make room for the newest readings. Current Stopwatch Session Record The following data items are included in the current stopwatch session record.
Historical Record The historical record contains data for all Altimeter Mode stopwatch sessions performed since the last time the historical record was cleared (page E-58). Data Type High Altitude Screen Name MAX Low Altitude MIN Total Ascent ASC Total Descent DSC Description Highest altitude reached during all Altimeter Mode stopwatch sessions. Lowest altitude reached during all Altimeter Mode stopwatch sessions. Total cumulative ascent during all Altimeter Mode stopwatch sessions.
To view altitude records and the current Altimeter Mode stopwatch session record Altitude records Current stopwatch session record E E E REC(1) E REC(2) B E C REC(20) MIN MAX B E B E ASC B B B DSC B C Historical record E E C B E-56 E MIN MAX E ASC B B DSC B
1. Enter the Data Recall Mode (page E-11). 2. Use the C button to cycle between the altitude records, current Altimeter Mode stopwatch record, and the historical record. 3. When the record you want is displayed, use the E (+) button and B (–) button to scroll through its data. Holding down the E or B button scrolls data at high speed. 4. After you are finished viewing data, press D to exit the Data Recall Mode.
Clearing the Historical Record Use the following procedure to clear the contents of the historical record and restart all values from zero. To clear the historical record • Before trying to clear data, first check to make sure that the Altimeter Mode stopwatch is stopped and reset to all zeros (page E-44). 1. Press the D button to enter the Data Recall Mode. 2. Hold down A. • CLR will appear in the upper part of the display. 3. Keep A held down for an additional two seconds until CLR starts flashing.
Barometer/Thermometer This watch uses a pressure sensor to measure air pressure (barometric pressure) and a temperature sensor to measure temperature. • You can calibrate the pressure sensor and the temperature sensor (page E-116) if you suspect that readings are incorrect. To take barometric pressure and temperature readings Barometric pressure graph Barometric pressure ll ll ll In the Timekeeping Mode, press the D button to enter the Barometer/Thermometer Mode.
• The displayed barometric pressure value changes to xxxx hPa if a measured barometric pressure falls outside the range of 260 hPa to 1100 hPa. The barometric pressure value will reappear as soon as the measured barometric pressure is within the allowable range. • Temperature is displayed in units of 0.1°C. • The displayed temperature value changes to xxx °C if a measured temperature falls outside the range of –10.0°C to 60.0°C.
Barometric Pressure Graph Barometric pressure indicates changes in the atmosphere. By monitoring these changes you can predict the weather with reasonable accuracy. This watch takes barometric pressure readings automatically every two hours (at the top of each even-numbered hour), regardless of its current mode. Measurement results are used to produce barometric pressure graph and barometric pressure change indicator readings.
A rising graph generally means improving weather. A falling graph generally means deteriorating weather. Note that if there are sudden changes in weather or temperature, the graph line of past measurements may run off the top or bottom of the display. The entire graph will become visible once barometric conditions stabilize. The following conditions cause the barometric pressure Not visible on measurement to be skipped, with the corresponding point on the display.
Barometric Pressure Change Indicator Barometric pressure change indicator Barometric pressure graph A ll ll ll lll ▲ ▲ A In the Barometer/Thermometer Mode, press the A button to toggle between the barometric pressure graph and the barometric pressure change indicator.
• Pressure differential is indicated in the range of ±4 hPa, in 1-hPa units. • The barometric pressure change indicator ( ) is not displayed when the displayed current barometric value is outside of the allowable measurement range (260 to 1,100 hPa). • Barometric pressure is calculated and displayed using hPa as the standard.
Barometric pressure change indicator More than +4hPa +3hPa +2hPa +1hPa ±0hPa –1hPa –2hPa –3hPa Less than –4hPa E-65
About Barometric and Temperature Measurement • Barometric pressure and temperature measurement readings are taken as soon as you enter the Barometer/Thermometer Mode. After that, barometric pressure and temperature readings are taken every five seconds. • During barometric pressure measurements, the watch may not be able to update its timekeeping display contents normally. Correct timekeeping is maintained internally, however.
World Time Timekeeping Mode time City code Current time in the zone of the selected city code World Time displays the current time in 33 cities (29 time zones) around the world. • If the current time shown for a city is wrong, check your Home City time settings and make the necessary changes (page E-96). • For full information on city codes, see the “City Code Table” at the back of this manual.
To toggle a city code time between Standard Time and Daylight Saving Time DST indicator 1. In the World Time Mode, use E (east) and B (west) to display the city code (time zone) whose Standard Time/Daylight Saving Time setting you want to change. 2. Hold down A to toggle between Daylight Saving Time (DST indicator displayed) and Standard Time (DST indicator not displayed). • The DST indicator appears on the display whenever you display a city code for which Daylight Saving Time is turned on.
Stopwatch Hours Minutes Current time 1/100 second Seconds The stopwatch lets you measure elapsed time, split times, and two finishes. • The Stopwatch Mode is independent of the Altimeter Mode stopwatch. • The display range of the stopwatch is 23 hours, 59 minutes, 59.99 seconds. • The stopwatch continues to run, restarting from zero after it reaches its limit, until you stop it. • The stopwatch measurement operation continues even if you exit the Stopwatch Mode.
To measure times with the stopwatch Elapsed Time JE E Start Stop JE Re-start Split Time JB JB E Start Split Split release (SPL displayed) Two Finishes JB JE E Start Split Stop First runner Second runner finishes. finishes. Display time of first runner. E-70 E Stop J E Stop J JB Split release Display time of second runner.
Countdown Timer Hours Current time You can set the countdown timer within a range of one minute to 24 hours. An alarm sounds when the countdown reaches zero. • All of the operations in this section are performed in the Countdown Timer Mode, which you enter by pressing D (page E-10). To set the countdown start time Minutes Seconds 1. While the countdown start time is on the display in the Countdown Timer Mode, hold down A until the hour setting of the countdown start time starts to flash.
2. Press D to move the flashing between the hour and minute settings. 3. Use E (+) and B (–) to change the flashing item. • To set the starting value of the countdown time to 24 hours, set OO'OO". 4. Press A to exit the setting screen. To use the countdown timer Press E while in the Countdown Timer Mode to start the countdown timer. • When the end of the countdown is reached, the alarm sounds for five seconds or until you stop it by pressing any button.
Alarms Alarm number Current time Alarm time (Hour : Minutes) The Alarm Mode gives you a choice of four onetime alarm (AL1 through AL4) and one snooze alarm (SNZ). Also use the Alarm Mode to turn the Hourly Time Signal (SIG) on and off. • When you enter the Alarm Mode, the data you were viewing when you last exited the mode appears first. • All of the operations in this section are performed in the Alarm Mode, which you enter by pressing D (page E-10).
To set an alarm time 1. In the Alarm Mode, use E and B to scroll through the alarm screens until the one whose time you want to set is displayed. E AL1 AL2 AL3 SNZ AL4 B Alarm on indicator SIG 2. Hold down A until the hour setting of the alarm time start to flash. This indicates the setting screen. • This automatically turns on the alarm. 3. Press D to move the flashing between the hour and minute settings. 4. While a setting is flashing, use E (+) and B (–) to change it.
Alarm Operation The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the watch is in. In the case of the snooze alarm, the alarm operation is performed a total of seven times, every five minutes, until you turn the alarm off (page E-76). • Alarm and Hourly Time Signal operations are performed in accordance with the Timekeeping Mode time. • To stop the alarm tone after it starts to sound, press any button.
To turn an alarm and the Hourly Time Signal on and off 1. In the Alarm Mode, use E and B to select an alarm or the Hourly Time Signal. 2. When the alarm or the Hourly Time Signal you want is displayed, press C to toggle it on and off. ALM Indicates alarm is on. SIG Indicates Hourly Time Signal is on. • The alarm on indicator (ALM) and the Hourly Time Signal on indicator (SIG) are shown on the display in all modes while these functions are turned on.
Illumination Auto light switch on indicator The display of the watch is illuminated using an EL (electro-luminescent) panel for easy reading in the dark. The watch’s auto light switch turns on illumination automatically when you angle the watch towards your face. • The auto light switch must be turned on (indicated by the auto light switch on indicator) for it to operate. • See “Illumination Precautions” (page E-112) for other important information about using illumination.
To turn on illumination manually Press L in any mode to illuminate the display for about one second. • The above operation turns on illumination regardless of the current auto light switch setting. • Illumination is disabled during time calibration signal reception and while configuring sensor measurement mode settings. About the Auto Light Switch Turning on the auto light switch causes illumination to turn on, whenever you position your wrist as described below in any mode.
Moving the watch to a position that is parallel to the ground and then tilting it towards you more than 40 degrees causes illumination to turn on. • Wear the watch on the outside of your wrist. Parallel to ground More than 40° Warning! • Always make sure you are in a safe place whenever you are reading the display of the watch using the auto light switch. Be especially careful when running or engaged in any other activity that can result in accident or injury.
• When you are wearing the watch, make sure that its auto light switch is turned off before riding on a bicycle or operating a motorcycle or any other motor vehicle. Sudden and unintended operation of the auto light switch can create a distraction, which can result in a traffic accident and serious personal injury. To turn the auto light switch on and off In the Timekeeping Mode, hold down L for about three seconds to toggle the auto light switch on (A.EL displayed) and off (A.EL not displayed).
Questions & Answers Question: How does the barometer work? Answer: Barometric pressure indicates changes in the atmosphere, and by monitoring these changes you can predict the weather with reasonable accuracy. Rising atmospheric pressure indicates good weather, while falling pressure indicates deteriorating weather conditions. The barometric pressures that you see in the newspaper and on the TV weather report are measurements corrected to values measured at 0 m sea level.
Question: How does the altimeter work? Answer: Generally, air pressure and temperature decrease as altitude increases. This watch bases its altitude measurements on International Standard Atmosphere (ISA) values stipulated by the International Civil Aviation Organization (ICAO). These values define relationships between altitude, air pressure, and temperature.
• Note that the following conditions will prevent you from obtaining accurate readings: When air pressure changes because of changes in the weather Extreme temperature changes When the watch itself is subjected to strong impact E-83
There are two standard methods of expressing altitude: Absolute altitude and relative altitude. Absolute altitude expresses an absolute height above sea level. Relative altitude expresses the difference between the height of two different places.
Precautions Concerning Simultaneous Measurement of Altitude and Temperature Though you can perform altitude and temperature measurements at the same time, you should remember that each of these measurements requires different conditions for best results. With temperature measurement, it is best to remove the watch from your wrist in order to eliminate the effects of body heat.
Power Supply This watch is equipped with a solar cell and a special rechargeable battery (secondary battery) that is charged by the electrical power produced by the solar cell. The illustration shown below shows how you should position the watch for charging. Example: Orient the watch so its face is pointing at a light source. • The illustration shows how to position a watch with a resin band. • Note that charging efficiency drops when any part of the solar cell is blocked by clothing, etc.
Important! • Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is blocked from exposure to light can cause rechargeable battery power to run down. Be sure that the watch is exposed to bright light whenever possible. • This watch uses a special rechargeable battery to store power produced by the solar cell, so regular battery replacement is not required.
Battery Power Indicator The battery power indicator shows you the current status of the rechargeable battery’s power. Level Battery Power Indicator All functions enabled. 2 All functions enabled. lllllllll l ll lll ll l l ll lllllllll ll l 3 lll Battery power indicator Function Status 1 Auto and manual receive, illumination, beeper, and sensor operation disabled.
• The flashing LOW indicator at Level 3 tells you that battery power is very low, and that exposure to bright light for charging is required as soon as possible. • At Level 5, all functions are disabled and settings return to their initial factory defaults. Once the battery reaches Level 2 (indicated by M indicator) after falling to Level 5, reconfigure the current time, date, and other settings. • Display indicators reappear as soon as the battery is charged from Level 5 to Level 2.
Battery Recovery Recover indicator • Performing multiple sensor, illumination, or beeper operations during a short period may cause LMH to appear on the display, indicating that the watch has disabled some functions to allow battery power to recover. Illumination, alarm, countdown timer alarm, hourly time signal, and sensor operations will be disabled until battery power recovers. After some time, battery power will recover and LMH will disappear, indicating that the above functions are enabled again.
Charging Precautions Certain charging conditions can cause the watch to become very hot. Avoid leaving the watch in the areas described below whenever charging its rechargeable battery. Also note that allowing the watch to become very hot can cause its liquid crystal display to black out. The appearance of the LCD should become normal again when the watch returns to a lower temperature. Warning! Leaving the watch in bright light to charge its rechargeable battery can cause it to become quite hot.
Charging Guide After a full charge, timekeeping remains enabled for up to about five months. • The following table shows the amount of time the watch needs to be exposed to light each day in order to generate enough power for normal daily operations.
▲ ▲ ▲ Recovery Times The table below shows the amount exposure that is required to take the battery from one level to the next.
Timekeeping Use the Timekeeping Mode to set and view the current time and date. • In the Timekeeping Mode, you can use the buttons shown in the illustration to display the timekeeping display you want. • Pressing the B button once will display the current time in the city you last viewed in the World Time Mode. • Holding down the B button for about five seconds will swap the World Time City and your current Home Time City. • To swap the cities back again, hold down the B button for about five seconds again.
City you last viewed in the World Time Mode TYO Time Day of week B ▲ ▲ TYO Time Release B. Hold down B for five seconds. UTC Time five seconds. Release B.
Read This Before You Set the Time and Date! This watch is preset with a number of city codes, each of which represents the time zone where that city is located. When setting the time, it is important that you first select the correct city code for your Home City (the city where you normally use the watch). If your location is not included in the preset city codes, select the preset city code that is in the same time zone as your location.
3. Press D to move the flashing in the sequence shown below to select the other settings. City Code Power Saving DST 12/24-Hour Format Day Month Seconds Year Hour Minutes • The following steps explain how to configure timekeeping settings only. 4. When the timekeeping setting you want to change is flashing, use E and/ or B to change it as described below. Screen ON To do this: Change the city code Do this: Use E (east) and B(west). Cycle between Auto DST (AvtA), Press E.
Screen To do this: Reset the seconds to 00 Do this: Press E. Change the hour or minutes Use E (+) and B (–). Change the year, month, or day 5. Press A to exit the setting screen. Note • Auto DST (AvtA) can be selected only while LON, PAR, BER, ATH, HKG, TPE, TYO, LAX, DEN, CHI, or NYC is selected as the Home City code. For more information, see “Daylight Saving Time (DST)” below. • You also need to enter the Timekeeping Mode in order to configure the following setting.
Daylight Saving Time (DST) Daylight Saving Time (summer time) advances the time setting by one hour from Standard Time. Remember that not all countries or even local areas use Daylight Saving Time. The time calibration signals transmitted from Mainflingen (Germany), Anthorn (England), or Fort Collins (the United States) include both Standard Time and DST data. When the Auto DST setting is turned on, the watch switches between Standard Time and DST (summer time) automatically in accordance with the signals.
To change the Daylight Saving Time (summer time) setting DST indicator 1. In the Timekeeping Mode, hold down A until the city code starts to flash. This indicates the setting screen. 2. Press D and the DST setting screen appears. 3. Use E to cycle through the DST settings in the sequence shown below. lll ll lll l ll ll l l l l l Auto DST (AvtA) DST off (OFF) DST on (ON) • If you change your Home City to one that is within the same transmitter area, the current DST setting will be retained.
Reference This section contains more detailed and technical information about watch operation. It also contains important precautions and notes about the various features and functions of this watch. Auto Return Features • The watch returns to the Timekeeping Mode automatically if you do not perform any button operation for two or three minutes in the Data Recall, Alarm, Receive, or Barometer/Thermometer Mode.
Scrolling The E and B buttons are used on the setting screen to scroll through data on the display. In most cases, holding down these buttons during a scroll operation scrolls through the data at high speed. Sensor Malfunction Indicator Subjecting the watch to strong impact can cause sensor malfunction or improper contact of internal circuitry. When this happens, ERR (error) will appear on the display and sensor operations will be disabled.
• If ERR appears while a measurement operation is being performed in a sensor mode, restart the measurement. If ERR appears on the display again, it can mean there is something wrong with the sensor. • Even if battery power is at Level 1 or Level 2, the Barometer/Thermometer Mode or Altimeter Mode sensor may be disabled if there is not enough voltage available to power it sufficiently. In this case, ERR will appear on the display.
Button Operation Tone The button operation tone sounds any time you press one of the watch’s buttons. You can turn the button operation tone on or off as desired. • Even if you turn off the button operation tone, the alarm, Hourly Time Signal, and Countdown Timer Mode alarm all operate normally.
Power Saving When turned on, Power Saving enters a sleep state automatically whenever the watch is left for a certain period in an area where it is dark. The table below shows how watch functions are affected by Power Saving. • There actually are two sleep state levels: “display sleep” and “function sleep”. Elapsed Time in Dark 60 to 70 minutes (Display Sleep) 6 or 7 days (Function Sleep) Display Blank, with PS flashing Blank, with PS not flashing Operation Display is off, but all functions are enabled.
• Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state. • The watch will not enter the sleep state while the digital time is between 6:00 AM and 9:59 PM. If the watch is already in the sleep state when the digital time reaches 6:00 AM, however, it will remain in the sleep state. • The watch will not enter the sleep state while it is in the Barometer/ Thermometer, Altimeter, Receive, Countdown Timer, or Stopwatch Mode.
llll l ll lll llll To turn Power Saving on and off lll lll Power Saving on indicator 1. In the Timekeeping Mode, hold down A until the city code starts to flash. This indicates the setting screen. 2. Press D nine times until the Power Saving on/off screen appears. 3. Press E to toggle Power Saving on (ON) and off (OFF). 4. Press A to exit the setting screen. • The Power Saving on indicator (PS) is on the display in all modes while Power Saving is turned on.
Radio-controlled Atomic Timekeeping Precautions • Strong electrostatic charge can result in the wrong time being set. • The time calibration signal bounces off the ionosphere. Because of this, such factors as changes in the reflectivity of the ionosphere, as well as movement of the ionosphere to higher altitudes due to seasonal atmospheric changes or the time of day may change the reception range of the signal and make reception temporarily impossible.
• Though this watch is designed to receive both time data (hour, minutes, seconds) and date data (year, month, day), certain signal conditions can limit reception to time data only. • If you are in an area where proper time calibration signal reception is impossible, the watch keeps the time with the precision noted in “Specifications”.
Transmitters The time calibration signal received by this watch depends on the currently selected Home City code (page E-13). • When a U.S. time zone is selected, the watch receives the time calibration signal transmitted from the United States (Fort Collins). • When a Japanese time zone is selected, the watch receives the time calibration signal transmitted from Japan (Fukushima and Fukuoka/Saga).
Timekeeping • Resetting the seconds to 00 while the current count is in the range of 30 to 59 causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are reset to 00 without changing the minutes. • With the 12-hour format, the P (PM) indicator appears on the display for times in the range of noon to 11:59 p.m. and no indicator appears for times in the range of midnight to 11:59 a.m. • With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without any indicator.
• The UTC offset is a value that indicates the time difference between a reference point in Greenwich, England and the time zone where a city is located. • The letters “UTC” is the abbreviation for “Coordinated Universal Time”, which is the world-wide scientific standard of timekeeping. It is based upon carefully maintained atomic (cesium) clocks that keep time accurately to within microseconds. Leap seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s rotation.
Auto light switch precautions • The auto light switch is turned off automatically whenever battery power is at Level 4 (page E-88). • Wearing the watch on the inside of your wrist, movement of your arm, or vibration of your arm can cause frequent activation of the auto light switch and illumination of the display. To avoid running down the battery, turn off the auto light switch whenever engaging in activities that might cause frequent illumination of the display.
• Static electricity or magnetic force can interfere with proper operation of the auto light switch. If illumination does not turn on, try moving the watch back to the starting position (parallel with the ground) and then tilt it back towards your face again. If this does not work, drop your arm all the way down so it hangs at your side, and then bring it back up again. • Under certain conditions, illumination does not turn on until about one second after you turn the face of the watch towards you.
Barometer and Thermometer Precautions • The pressure sensor built into this watch measures changes in air pressure, which you can then apply to your own weather predictions. It is not intended for use as a precision instrument in official weather prediction or reporting applications. • Sudden temperature changes can affect pressure sensor readings. • Temperature measurements are affected by your body temperature (while you are wearing the watch), direct sunlight, and moisture.
Pressure Sensor and Temperature Sensor Calibration The pressure sensor and temperature sensor built into the watch are calibrated at the factory and normally require no further adjustment. If you notice serious errors in the pressure readings and temperature readings produced by the watch, you can calibrate the sensor to correct the errors. Important! • Incorrectly calibrating the barometric pressure sensor can result in incorrect readings.
To calibrate the pressure sensor and the temperature sensor ll ll llll ll llllll lll lll lllll ll 1. Press D to enter the Barometer/ Thermometer Mode (page E-10). 2. In the Barometer/Thermometer Mode, hold down A for about two seconds until either OFF or the current temperature calibration value starts to flash. This is the setting screen. • If you want to calibrate the barometric pressure sensor, press D to move the flashing to the middle display area.
Specifications Accuracy at normal temperature: ±15 seconds a month Timekeeping: Hour, minutes, seconds, p.m.
Barometer: Measurement and display range: 260 to 1,100 hPa Display unit: 1 hPa Measurement timing: Daily from midnight, at two hour intervals (12 times per day); Every five seconds in the Barometer/Thermometer Mode Other: Calibration; Manual measurement (button operation); Barometric pressure graph Thermometer: Measurement and display range: –10.0 to 60.0°C Display unit: 0.
Altimeter: Measurement range: –700 to 10,000 m without reference altitude Display range: –10,000 to 10,000 m Negative values can be caused by readings produced based on a reference altitude or due to atmospheric conditions.
Pressure Sensor Precision: Fixed temperature Effect of variable temperature Conditions (Altitude) 0 to 6000 m Altimeter Barometer ± (pressure differential × 3% + 3 hPa) hPa 0 to 6000 m ± (altitude differential × 3% + 30 m) m ± (altitude differential × 3% + 45 m) m ± 80 m every 10°C 6000 to 10000 m ± 120 m every 10°C 6000 to 10000 m ± 6 hPa every 10°C • Values are guaranteed for a temperature range of –10°C to 40°C.
Temperature Sensor Precision: ±2°C in range of –10°C to 60°C World Time: 33 cities (29 time zones) Other: Daylight Saving Time/Standard Time Stopwatch: Measuring unit: 1/100 second Measuring capacity: 23:59' 59.
Power Supply: Solar cell and one rechargeable battery Approximate battery operating time: 6 months (from full charge to Level 4) under the following conditions. • Watch not exposed to light • Internal timekeeping • Display on 18 hours per day, sleep state 6 hours per day • 1 illumination operation (1.
Operating Precautions Water Resistance • The following applies to watches with WATER RESIST or WATER RESISTANT marked on the back cover.
• Watches that do not have WATER RESIST or WATER RESISTANT marked on the back cover are not protected against the effects of sweat. Avoid using such a watch under conditions where it will be exposed to large amounts of sweat or moisture, or to direct splashing with water. • Even if a watch is water-resistant, do not operate its buttons or crown while it is submersed in water or wet. • Even if a watch is water-resistant, avoid wearing it in the bath or in areas where detergents (soap, shampoo, etc.
• The inside surface of the watch glass may fog when the watch is exposed to a sudden drop in temperature. No problem is indicated if the fogging clears up relatively quickly. If the fogging does not clear or if water has gotten into the watch, take the watch in for repair immediately. • Continued use of the watch with water inside can result in damage to electronic and mechanical components, the face of the watch, etc.
Temperature • Never leave the watch on the dashboard of a car, near a heater, or in any other location that is subject to very high temperatures. Do not leave the watch where it will be exposed to very low temperatures, either. Temperature extremes can cause the watch to lose or gain time, to stop, or otherwise malfunction. • Leaving the watch in an area hotter than +60°C (140°F) for long periods can lead to problems with its LCD.
Magnetism • Though your watch normally is not affected by magnetism, very strong magnetism (from medical equipment, etc.) should be avoided because it can cause malfunction and damage to electronic components. • Though operation of your watch normally is not affected by magnetism, its accuracy may be affected if the watch itself becomes magnetized. Also, very strong magnetism (from medical equipment, etc.) should be avoided because it can cause malfunction of the watch and damage to electronic components.
Chemicals • Do not allow the watch to come into contact with thinner, gasoline, solvents, oils, or fats, or with any cleaners, adhesives, paints, medicines, or cosmetics that contain such ingredients. Doing so can cause discoloration of or damage to the case, resin band, leather band, and other parts. Storage • If you do not plan to use the watch for a long time, wipe it thoroughly free of all dirt, sweat, and moisture, and store it in a cool, dry place.
• Friction caused by certain conditions (frequent external force, sustained rubbing, impact, etc.) can cause discoloration of painted components. • If there are printed figures on the band, strong rubbing of the printed area can cause discoloration. • Failure to clean dirt from the watch for long periods can cause fluorescent color to fade. Wash dirt off with water as soon as possible and then dry the watch.
• Leaving a leather band where it is exposed to direct sunlight (ultraviolet rays) for long periods or failure to clean dirt from a leather band for long periods can cause it to become discolored. Important! • Subjecting a natural leather or imitation leather band to rubbing or dirt can cause color transfer and discoloration. Metal Components • Failure to clean dirt from a metal band can lead to formation of rust, even if the band is stainless steel or plated.
Bacteria and Odor Resistant Band • The bacteria and odor resistant band protects against odor generated by the formation of bacteria from sweat, which ensures good comfort and hygiene. In order to ensure maximum bacteria and odor resistance, keep the band clean. Use an absorbent soft cloth to wipe the band clean of dirt, sweat, and moisture. The bacteria and odor resistant band suppresses the formation of organisms and bacteria. It does not protect against rash due to allergic reaction, etc.
Sensors • The sensors of this watch are precision instruments. Never try to take them apart. Never try to insert any objects into the openings of sensors, and take care to ensure that dirt, dust, or other foreign matter does not get into sensors. After using the watch where it is immersed in saltwater, rinse it thoroughly with fresh water.
User Maintenance Caring for Your Watch • A dirty or rusty case or band can soil the sleeve of your clothing, cause skin irritation, and even interfere with watch performance. Be sure to keep the case and band clean at all times. Rust tends to form easily after the watch is exposed to seawater and then left without cleaning. • Sometimes a smudge like pattern may appear on the surface of a resin band. This will not have any affect on your skin or clothing. Wipe the band with a cloth to clean it.
• Remember that you wear your watch next to your skin, just like a piece of clothing. Because of this, you should always keep your watch clean. Use a soft, absorbent cloth to wipe off any dirt, sweat, water, or other foreign matter from the case and band. Dangers of Poor Watch Care Rust • Though the stainless steel used for the watch is highly rust-resistant, rust can form if the watch is not cleaned after it becomes dirty.
Skin Irritation • Individuals with sensitive skin or in poor physical condition may experience skin irritation when wearing a watch. Such individuals should keep their leather band or resin band particularly clean, or switch to a metal band. Should you ever experience a rash or other skin irritation, immediately remove the watch and contact a skin care professional. Battery • The special rechargeable (secondary) battery used by your watch is not intended to be removed or replaced by you.
City Code Table L-1
City Code Table City Code PPG HNL ANC City UTC offset Pago Pago Honolulu Anchorage –11.0 –10.0 –09.0 LAX Los Angeles –08.0 DEN Denver –07.0 CHI Chicago –06.0 NYC New York –05.0 SCL RIO FEN RAI UTC LON PAR BER Santiago Rio De Janeiro Fernando de Noronha Praia –04.0 –03.0 –02.0 –01.0 — +00.0 L-2 London Paris Berlin +01.
City Code ATH CAI JRS JED THR DXB KBL KHI DEL DAC RGN BKK HKG TPE TYO ADL SYD NOU WLG City Athens Cairo Jerusalem Jeddah Tehran Dubai Kabul Karachi Delhi Dhaka Yangon Bangkok Hong Kong Taipei Tokyo Adelaide Sydney Noumea Wellington UTC offset +02.0 +03.0 +03.5 +04.0 +04.5 +05.0 +05.5 +06.0 +06.5 +07.0 +08.0 +09.0 +09.5 +10.0 +11.0 +12.
