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.
Keep the watch exposed to bright light The electricity generated by the solar cell of the watch is stored by a built-in battery. Leaving or Bright light 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.
• 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.
• 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. Approximately five minutes exposure to bright sunlight coming in through a window Approximately 50 minutes exposure to indoor fluorescent lighting...
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”...
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 ..................E-67 Stopwatch ..................E-69 Countdown Timer ................E-71 Alarms ....................E-73 Illumination ..................E-77 Questions & Answers ..............E-81 Power Supply ...................
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 .........
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 ..E-117...
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/ World Time Mode Thermometer Mode Press D. Countdown Timer Mode Stopwatch Mode Alarm Mode E-10...
• 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.
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 1.
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.
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.
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.
• Proper signal reception can be difficult or even impossible under the conditions listed below. Among or Inside or Inside a Near a Near high- Near behind among vehicle construction tension household mountains buildings site, airport, power lines appliances, or other office sources of equipment,...
• 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 Transmitter Frequency Anthorn (England) 60.0 kHz LON, PAR, BER, ATH Mainflingen (Germany) 77.5 kHz Shangqiu City (China) 68.5 kHz Fukushima (Japan)
Approximate Reception Ranges 1,500 kilometers Anthorn Mainflingen 500 kilometers The Anthorn signal is 2,000 miles receivable within (3,000 kilometers) this area. 600 miles (1,000 kilometers) Fort Collins E-19...
kilometers kilometers Fukuoka/Saga Fukushima 1,000 1,000 kilometers kilometers Signals are receivable in the Taiwan area when reception conditions are good. Changchun 1,500 kilometers 500 kilometers Beijing Shanghai Chengdu Hong Kong Shangqiu E-20...
• 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. Mainflingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310 miles) Fort Collins (United States) transmitter: 600 miles (1,000 kilometers) Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles) Shangqiu (China) transmitter: 1500 kilometers (910 miles)
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.
Auto Receive Start Times Your Home City HKG Standard Time 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am Standard Time 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...
• 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. •...
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.
To perform manual receive 1. In the Timekeeping Mode, press E to display Receiving 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.
• If the latest reception fails but a previous Receive failed 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.
To turn auto receive on and off 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 ( ) starts to flash. This is the setting screen.
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. E-30...
Signal Reception Troubleshooting Check the following points whenever you experience problems with signal reception. Problem Probable Cause What you should do • The watch is not in the Receive • Enter the Receive Mode Cannot perform manual receive. Mode. and try again. •...
Problem Probable Cause What you should do • Even if receive is successful, the •Check to make sure the Auto receive is 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...
Problem Probable Cause What you should do • If the time is one hour off, the • Change the DST setting Time setting is incorrect DST setting may be incorrect. to Auto DST (page E-100). • The Home City code setting is •...
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.
• 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. •...
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 along the way or altitude information from a map.
• 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”...
To view your current altitude 1. In the Timekeeping Mode, use the C button to enter the Altimeter Mode. Altitude change since • The watch will start altitude measurement Altimeter Mode stopwatch measurement started and display the result. • It can take up to four or five seconds for the Altitude graph first altitude reading to appear.
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. •...
Altitude graph Altitude change indicator • 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 +15m Altitude change +10m indicator ±0m –5m –10m –15m Less than –20m E-41...
To specify the altitude reading interval 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. •...
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).
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.
2. Press the 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.
Data Description High Altitude Highest altitude reached during the current Altimeter Mode stopwatch session. Low Altitude Lowest altitude reached during the current Altimeter Mode stopwatch session. Total Ascent Total cumulative ascent during the current Altimeter Mode stopwatch session. Total Descent Total cumulative descent during the current Altimeter Mode stopwatch session.
• 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. • In the Altimeter Mode Altitude Measurement First 3 minutes After 3 minutes...
How the historical record is updated The watch performs the following operations continually while an Altimeter Mode stopwatch operation is in progress. Data Update Operation High Altitude The historical record value is compared with the current reading and the greater 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-to- altitude conversion calculation accordingly.
To specify a reference altitude 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.
Altitude graph The altitude graph shows Altimeter Mode measurement results. • The vertical axis of the graph represents Altitude altitude, and each dot stands for 10 meters. • The horizontal axis represents time, and the Time flashing dot in the rightmost column indicates the latest measurement result.
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.
Measurement time (Hour : Minutes) Alternates at 1-second intervals. Record name Altitude Measurement date (Month – Day) E-53...
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 Screen Name Description Highest altitude reached during all High Altitude Altimeter Mode stopwatch sessions. Lowest altitude reached during all Low Altitude Altimeter Mode stopwatch sessions.
To view altitude records and the current Altimeter Mode stopwatch session record Altitude records Current stopwatch session record ( 1 ) ( 2 ) ( 20 ) Historical record E-56...
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.
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).
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 In the Timekeeping Mode, press the D button to Barometric...
• The displayed barometric pressure value changes to hPa if a xxxx 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. •...
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.
Barometric Pressure Change Indicator Barometric pressure change indicator Barometric pressure graph In the Barometer/Thermometer Mode, press the A button to toggle between the barometric pressure graph and the barometric pressure change indicator. This indicator ( ) indicates the relative difference between the most recent barometric pressure reading indicated on the barometric pressure graph (page E-61), and the current barometric pressure value displayed in the Barometer/Thermometer Mode (page E-59).
• 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 More than +4hPa change indicator +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.
World Time World Time displays the current time in 33 cities Timekeeping (29 time zones) around the world. Mode time • If the current time shown for a city is wrong, City code check your Home City time settings and make the necessary changes (page E-96).
To toggle a city code time between Standard Time and Daylight Saving Time 1. In the World Time Mode, use E (east) and B DST indicator (west) to display the city code (time zone) whose Standard Time/Daylight Saving Time setting you want to change. 2.
Stopwatch The stopwatch lets you measure elapsed time, Current time Hours 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. •...
To measure times with the stopwatch Elapsed Time Start Stop Re-start Stop Clear Split Time Start Split Split release Stop Clear (SPL displayed) Two Finishes Start Split Stop Split release Clear First runner Second runner Display time of finishes. finishes. second runner.
Countdown Timer You can set the countdown timer within a range Current time Hours 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).
Alarms The Alarm Mode gives you a choice of four one- Alarm number time alarm (AL1 through AL4) and one snooze Current time alarm (SNZ). Also use the Alarm Mode to turn the Hourly Time Signal (SIG) on and off. •...
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. Alarm on indicator 2. Hold down A until the hour setting of the alarm time start to flash. This indicates the setting screen.
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).
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.
Illumination 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.
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.
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 More than ground 40°...
• 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.
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.
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. Altitude Air Pressure 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. Height of building 130 m Rooftop at an altitude of (relative altitude) 230 m above sea level (absolute altitude)
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. Solar cell Example: Orient the watch so its face is pointing at a light source.
If you experience problems getting the special rechargeable battery to charge fully, contact your dealer or CASIO distributor about having it replaced. • Never try to remove or replace the watch’s special battery yourself. Use of the wrong type of battery can damage the watch.
Battery Power Indicator The battery power indicator shows you the current status of the rechargeable battery’s power. Level Battery Power Indicator Function Status All functions enabled. All functions enabled. Auto and manual receive, Battery power illumination, beeper, and indicator sensor operation disabled. (Charge Soon Alert) Except for timekeeping and the C (charge) indicator, all...
• The flashing 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.
Battery Recovery • 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.
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.
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. Approximate Exposure Time Exposure Level (Brightness) Level 5 Level 4 Level 3 Level 2 Level 1 Outdoor Sunlight 1 hour 14 hours 4 hours...
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.
City you last viewed in the TYO Time World Time Mode Time in city Day of week you last viewed in the World Time Mode TYO Time Release B. Hour : Seconds Hold down B for Minutes Hold down B for five seconds.
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).
3. Press D to move the flashing in the sequence shown below to select the other settings. 12/24-Hour City Code Seconds Hour Format Power Minutes Month Year Saving • 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 To do this: Do this: Press E. Reset the seconds to 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 , or...
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.
To change the Daylight Saving Time (summer time) setting 1. In the Timekeeping Mode, hold down A until DST indicator the city code starts to flash. This indicates the setting screen. 2. Press D and the DST setting screen appears. 3.
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.
Whenever you have a sensor malfunction, be sure to take the watch to your original dealer or nearest authorized CASIO distributor as soon as possible. E-103...
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. •...
• 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.
To turn Power Saving on and off 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 ( ) and off ( 4.
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). •...
Timekeeping • Resetting the seconds to 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 without changing the minutes. •...
• 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.
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.
• 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.
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.
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! •...
To calibrate the pressure sensor and the temperature sensor 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.
Specifications Accuracy at normal temperature: ±15 seconds a month Timekeeping: Hour, minutes, seconds, p.m. (P), year, month, day, day of the week Time format: 12-hour and 24-hour Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099 Other: Home City code (can be assigned one of 33 city codes); Standard Time / Daylight Saving Time (summer time) Time Calibration Signal Reception: Auto receive 6 times a day (Remaining auto receives cancelled as soon as one is successful);...
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...
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. Display unit: 5 m Current Altitude Data: 5-second intervals for 1 hour (0'05"),or 5-second interval for first 3 minutes followed by 2-minute interval for next 10 hours (2'00") Altitude Memory Data: 20 altitude records...
Pressure Sensor Precision: Conditions Altimeter Barometer (Altitude) ± (altitude differential × 3% ± (pressure differential × 3% Fixed 0 to 6000 m tempera- + 30 m) m + 3 hPa) hPa ture ± (altitude differential × 3% 6000 to 10000 m + 45 m) m Effect of 0 to 6000 m...
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' 59.99'' Measuring modes: Elapsed time, split time, two finishes Countdown Timer: Measuring unit: 1 second Countdown start time setting range: 1 minute to 24 hours (1-hour increments and 1-minute increments)
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 •...
Operating Precautions Water Resistance • The following applies to watches with WATER RESIST or WATER RESISTANT marked on the back cover. Enhanced Water Resistance Under Water Daily Use Resistance Under Daily Atmospheres Atmospheres Atmospheres On watch front or 5BAR 10BAR Marking 20BAR on back cover...
Battery replacement requires the use of special tools. Always request battery replacement from your original retailer or from an authorized CASIO Service Center. • Some water-resistant watches come with fashionable leather bands. Avoid swimming, washing, or any other activity that causes direct exposure of a leather band to water.
Should you notice any breakage, discoloration, looseness or other problem with the band, immediately contact your original retailer or an authorized CASIO Service Center to have it checked, repaired, or replaced. Note that you will be charged for any repair or replacement of the band.
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.
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.
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 •...
• Semi-transparent resin parts can become discolored due to sweat and dirt, and if exposed to high temperatures for long periods. • Contact an authorized CASIO Service Center to have resin components replaced. Note that you will be charged for replacement costs.
• 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.
• Allowing the battery to go dead, replacing the battery, or having the watch repaired can cause all data in the watch’s memory to be lost. Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damages or losses caused by data lost due to malfunction or repair of the watch, replacement of the battery, 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.
• Should your band become badly cracked or worn, be sure to have it replaced with a new one. Request band replacement from your original retailer or an authorized CASIO Service Center. Note that you will be charged for band replacement costs, even if your watch is still covered by its warranty.
• 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.
However, charging and discharging of the battery over the years leads naturally to a loss in its ability to sustain a charge and shortens its operating time. If this happens, contact your original retailer or authorized CASIO Service Center. E-136...
City Code Table City Other major cities in same time zone City UTC offset Code Pago Pago –11.0 Honolulu –10.0 Papeete Anchorage –09.0 Nome San Francisco, Las Vegas, Vancouver, Los Angeles –08.0 Seattle/Tacoma, Dawson City, Tijuana Denver –07.0 El Paso, Edmonton, Culiacan Houston, Dallas/Fort Worth, Chicago –06.0...
City Other major cities in same time zone City UTC offset Code Athens Helsinki, Istanbul, Beirut, Damascus, +02.0 Cairo Cape Town Jerusalem Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow Jeddah +03.0 Tehran +03.5 Shiraz Dubai +04.0 Abu Dhabi, Muscat Kabul +04.5 Karachi +05.0...