CASIO GW-600 Module 2972/2973 User Manual
Important Information
Battery
If you notice signs of insufficient power (dim display or no backlight), replace the battery at your nearest CASIO dealer or distributor. The battery included in your watch is a factory-installed test battery, so its service life may be shorter than a standard battery.
Water Resistance
Watches are classified by water resistance levels (from I to V). Refer to the table below to determine the rules for using your watch.
| Marking on Case | Splashes, Rain, Washing Hands | Swimming, Washing Machines | Diving | Scuba Diving |
|---|---|---|---|---|
| I | No | No | No | No |
| II WATER RESISTANT | Yes | No | No | No |
| III 50M WATER RESISTANT | Yes | Yes | No | No |
| IV 100M WATER RESISTANT | Yes | Yes | Yes | No |
| V 200M WATER RESISTANT 300M WATER RESISTANT | Yes | Yes | Yes | Yes |
Notes for corresponding sections:
- I. Watches are not water resistant. Avoid any moisture.
- III. If the watch is exposed to salt water, rinse thoroughly and dry.
- IV. If the watch is exposed to salt water, rinse thoroughly and dry.
- V. Watches can be used for scuba diving (except for depths requiring a helium-oxygen mixture).
Important Notes
Some water-resistant watches have leather straps. Do not wear these watches while swimming or engaging in any other activity where the strap may be submerged in water.
Care for Your Watch
- The rubber gasket that protects the watch from water and dust should be replaced every 2-3 years.
- If water enters the watch, have it checked immediately by your nearest CASIO dealer or distributor.
- Do not expose the watch to extremely high or low temperatures.
- While the watch is designed for normal use, avoid rough handling and do not drop it.
- Do not fasten the strap too tightly. There should be space for a finger between your wrist and the strap.
- To clean the watch and strap, use a dry soft cloth or a soft cloth dampened with a mild, neutral detergent solution. Never use volatile solvents (e.g., gasoline, thinners, spray cleaners, etc.).
- When not using your watch, store it in a dry place.
- Avoid exposing the watch to gasoline, cleaning solvents, spray aerosols, adhesives, paint, etc. Chemical reactions caused by these materials can damage gaskets, the case, and the polish.
- Some models have silk-screened designs on their straps. Be careful when cleaning such straps to avoid damaging the designs.
For Watches with Polymer Straps
A whitish powdery substance may appear on the strap. This substance is harmless to your skin or clothing and can be easily removed by wiping with a soft cloth.
Exposure of the polymer strap to sweat or moisture, or storing it in humid conditions, can lead to damage, tearing, or cracking. To ensure a long service life for the polymer strap, wipe it clean of dirt and water with a soft cloth as often as possible.
For Watches with Fluorescent Cases and Straps
Prolonged exposure to direct sunlight can cause the fluorescent color to gradually fade. Prolonged contact with moisture can also cause the fluorescent color to fade. If the watch surface comes into contact with moisture, wipe it off as soon as possible.
Prolonged contact with a wet surface may lead to the fluorescent color fading. Ensure there is no moisture on the fluorescent surface and avoid contact with other surfaces. Strong friction on a surface with fluorescent paint may transfer the paint to that surface.
General Description of Modes
The illustration shows the general view of the watch in the Current Time Mode.
Pressing button "C" sequentially switches between modes:
- Current Time Mode
- World Time Mode
- Alarm Mode
- Countdown Timer Mode
- Stopwatch Mode
- Current Time Mode
Press button "L" in any mode to activate the backlight.
Calibration
This watch automatically adjusts the time based on the calibration signal. However, you can also set the time manually.
- Before using the watch, set your current home city.
- In Current Time Mode, press button "D" to switch between displaying the current time/date and the time of the last signal reception.
Setting Home City
- In Current Time Mode, press and hold button "A" until the city code flashes, indicating the start of settings.
- Use buttons "B" and "D" to change your current home city code.
- Press button "A" twice to confirm settings.
| City Code | City | Difference from GMT | Other Major Cities in this Time Zone |
|---|---|---|---|
| PAGO PAGO | Паго-Паго | -11.0 | Паго-Паго |
| HNL | Гонолулу | -10.00 | Папеэте |
| ANC | Анкара | -09.00 | Ном |
| LAX | Лос Анджелес | -08.00 | Сан-Франциско, Лас Вегас, Ванкувер, Сиэтл, Доусон Сити |
| DEN | Денвер | -07.00 | Эль Пасо, Эдмонтон |
| CHI | Чикаго | -06.00 | Хьюстон, Даллас, Новый Орлеан, Мексико Сити, Виннипег |
| NYC | Нью Йорк | -05.00 | Монреаль, Детроит, Майами, Бостон, Панама Сити, Гавана, Лима, Богота |
| CCS | Каракас | -04.00 | Сантьяго |
| RIO | Рио Де Жанейро | -03.00 | Сан Пауло, Буэнос Айрес, Бразилиа, Монтевидео |
| -02.00 | |||
| -01.00 | Прая | ||
| GMT | Лондон | +00.00 | Дублин, Лиссабон, Касабланка, Дакар, Абиджан |
| PAR | Париж | +01.00 | Милан, Рим, Амстердам, Алжир, Гамбург, Франкфурт, Вена, Стокгольм |
| BER | Берлин | +01.00 | Берлин |
| ATH | Афины | +02.00 | Афины |
| CAI | Каир | +02.00 | Хельсинки, Стамбул |
| JRS | Иерусалим | +02.00 | Бейрут, Дамаск, Кейптаун |
| JED | Джидда | +03.00 | Кувейт, Эр-Рияд, Аден, Аддис Абаба, Найроби, Москва |
| THR | Тегеран | +03.05 | Шираз |
| DXB | Дубаи | +04.00 | Абу Даби, Мускат |
| KBL | Кабул | +04.05 | |
| KHI | Карачи | +05.00 | Мале |
| DEL | Дели | +05.50 | Мумбаи, Кольката |
| DAC | Дакка | +06.00 | Коломбо |
| RGN | Янгон | +06.50 | |
| BKK | Бангкок | +07.00 | Джакарта, Ханой, Вьентьян |
| HKG | Гон Конг | +08.00 | Сингапур, Куала Лумпур, Бейжинг, Манила, Перт, Улан Батор |
| SEL | Сеул | +09.00 | Сеул |
| TYO | Токио | +09.00 | Пхеньян |
| ADL | Аделаида | +09.05 | Дарвин |
| SYD | Сидней | +10.00 | Мельбурн, Гуам, Рабауль |
| NOU | Нумеа | +11.00 | Вила |
| WLG | Веллингтон | +12.00 | Нади, Науру, Крайстчерч |
Calibration Signal
The watch receives calibration signals and updates the time accordingly. Signal transmission centers are located in Germany (25 km from Frankfurt) and Rugby, England. The signal covers a radius of 1500 km. Signal may be weak at distances over 500 meters.
The transmitted signal is affected by natural conditions, atmospheric pressure, and temperature. Signal weakening can be caused by:
- Being near a TV, computer, or household appliance.
- Being in a subway or tunnel.
- Being at an airport, train station, or high-speed road.
- Proximity to radio stations or signal transmission stations.
- Electrostatic voltage.
There are two types of calibration signal reception. With auto-calibration enabled, the watch automatically receives the signal five times each day and corrects the time.
- For selected cities (London, Paris, Berlin, Athens), auto-calibration is enabled by default as the home city.
- With forced calibration enabled, you manually press a button to receive the signal:
- Position your watch horizontally.
- In Current Time Mode, press and hold button "D" for 2-3 seconds until a signal tone sounds and the "RC!" indicator appears, indicating the start of signal reception.
- Signal reception lasts from 2 to 6 minutes. Be careful not to move your watch during signal reception.
- After signal reception is complete, the watch display will show the data from the last reception.
To stop the signal reception process and return to Current Time Mode, press button "D".
If signal reception fails, the display will show "ERR" for 1-2 minutes, then return to Current Time Mode.
You can return to Current Time Mode by pressing button "D".
Auto-Calibration
With auto-calibration enabled, the watch automatically receives the signal five times (during the night and early morning). Auto-calibration only occurs when the watch is in Current Time Mode. Signal reception lasts from 2 to 6 minutes. Be careful not to move your watch during signal reception.
Signal Reception Indicator
This indicator shows the signal reception strength. When the watch is positioned for optimal reception, the indicator will be fully displayed. Try to position the watch for successful reception whenever possible. It takes about 10 seconds for the watch to establish the signal reception strength shown on the indicator. If the calibration indicator is not displayed, signal reception is not occurring. Perform manual calibration or check your watch settings.
Selecting Signal Transmission Center
Signal transmission centers are located in Germany (25 km from Frankfurt) or Rugby, England.
- In Current Time Mode, press button "D" to display the time of the last signal reception.
- Press and hold button "A" until the signal transmission mode (AUTO, MSF, DCF, OFF) flashes, indicating the start of settings.
- Use button "D" to select the reception mode: "AUTO" (Automatic), "MSF" (UK, for module 2972), "DCF" (Germany, for module 2973), "OFF" (Reception disabled).
- Press button "A" to confirm settings.
World Time Mode
In this mode, you can view the local time for any of the 30 cities worldwide (27 time zones). World Time values are automatically set according to the current time.
Setting Daylight Saving Time (DST)
- In World Time Mode, select the city code for which you want to enable or disable Daylight Saving Time using buttons "D" and "B".
- Press and hold button "A" to enable or disable DST.
Viewing Time in Other Time Zones
In World Time Mode, press buttons "B" and "D" to select the city for which you want to view the time.
Alarm Mode
You can set various daily alarms. The alarm will sound for 10 seconds at the set time.
- If the hourly chime mode is enabled, a short beep will sound at the beginning of each hour.
- If the snooze alarm is enabled, the alarm will sound 7 times every five minutes until you turn it off.
Setting an Alarm
- In Alarm Mode, press button "D" to select the alarm type in the following sequence: AL1 → AL2 → AL3 → AL4 → SNZ (snooze alarm) → SIG (hourly chime).
- After selecting the alarm type, press and hold button "A". The hour digits will flash, indicating they are selected for setting. The alarm will automatically turn on at this point.
- Press button "C" to move from digit to digit in the following sequence: Hours → Minutes → Hours.
- Press button "D" to increase and button "B" to decrease the selected value. Holding down these buttons allows for faster adjustment.
The format (12-hour or 24-hour) corresponds to the format you selected when setting the current time. If you use the 12-hour format, be careful to set AM or PM correctly.
- Press button "A" to return to Alarm Mode after setting.
Checking Alarm Sound
In Alarm Mode, press button "D" to check the alarm sound.
Turning Alarms On/Off
- In Alarm Mode, press button "D" to select the alarm type.
- After selecting the alarm type, press button "B" to turn the selected alarm type on or off.
If any of the 4 alarms are selected, the display will show "AL". If the snooze alarm is selected, "SNZ" will be displayed. If the hourly chime is selected, "SIG" will be displayed.
Countdown Timer Mode
The countdown timer can be set from 1 to 60 minutes. When the countdown reaches zero, an alarm sounds.
Setting the Timer Start Time
- Press and hold button "A" in Timer Mode. The start time indicator will flash, indicating the start of settings.
- Press button "D" to increase or button "B" to decrease the minute value. Holding these buttons down allows for faster adjustment.
- After setting the timer start time, press button "A" to return to Timer Mode.
Using the Timer
- Press button "D" in Timer Mode to start the countdown.
- Press button "D" again to stop the countdown.
- You can resume the countdown by pressing button "D".
- After stopping the countdown, you can press button "B" to reset the countdown time to the starting value.
When the countdown reaches zero, an alarm sounds for 10 seconds, which can be stopped by pressing any button. The timer will then automatically reset to the starting time.
Stopwatch Mode
The Stopwatch Mode allows you to measure elapsed time, split times, and dual finishes. The maximum measurement range is 23 hours, 59 minutes, 59.99 seconds.
Measuring Elapsed Time
D (Start) – D (Stop) – D (Restart) – D (Stop) – B (Reset)
Measuring Time with Split Results
D (Start) – B (Split) – B (Continue) – D (Stop) – B (Reset)
Dual Finish
D (Start) – B (Split. First Finish) – D (Second Finish. Display shows result of 1st finish) – B (Cancel Split. Display shows result of 2nd finish) – B (Reset)
Power Source
This watch is equipped with a solar rechargeable battery and a backup battery that is powered by the solar battery. If your watch is kept away from light for an extended period, the backup battery charge will decrease.
Power Level Indicator
| Level | Indicator | Watch Functions |
|---|---|---|
| 1 | H | Battery charge is sufficient for normal watch operation. |
| 2 | M | Battery charge is sufficient for normal watch operation. |
| 3 | CHG L | Alarm, backlight, and electronic display may not function. |
| 4 | (No indicator) | Battery is fully discharged. Place watch in bright light. |
If there is no indicator on the display, the battery is fully discharged. Place your watch in a brightly lit area. Be careful not to place your watch in direct sunlight for extended periods, as this may cause malfunctions. If you use the backlight or alarm too frequently, the "RECOV" indicator may appear on the display, indicating that the battery is recharging.
Charging the Battery
After a full charge, normal operation is maintained for approximately 11 months under the following conditions:
- Watch is not exposed to sunlight.
- 16 minutes of calibration per day.
- 1.5 seconds of backlight use per day.
- 10 seconds of alarm use per day.
- 18 hours of operation, 6 hours (per day) in sleep mode.
Exposing the watch to sunlight daily ensures continuous battery recharging:
| Light Intensity | Approximate Charging Time |
|---|---|
| Direct sunlight (50,000 lux) | 5 minutes |
| Sunlight through window (10,000 lux) | 24 minutes |
| Daylight in cloudy weather (5,000 lux) | 48 minutes |
| Daylight lamp (500 lux) | 8 hours |
The following table shows the approximate time required to charge the battery:
| Light Intensity | Level 4 | Level 3 | Level 2 | Level 1 |
|---|---|---|---|---|
| Direct sunlight | 2 hours | 5 hours | 22 hours | 6 hours |
| Sunlight through window | 109 hours | 30 hours | ||
| Daylight in cloudy weather | 9 hours | 222 hours | 61 hours | |
| Daylight lamp | 101 hours |
Power Saving Mode
Sleep mode saves battery power when the watch is in darkness. The following table shows the availability of watch functions when in sleep mode:
| Duration in Sleep Mode | Functions |
|---|---|
| 60 – 70 minutes |
|
| 6 – 7 days |
|
Enabling/Disabling Power Saving Mode
- In Current Time Mode, press and hold button "A" until the city code flashes, indicating the start of settings.
- Press button "C" 9 times to access the Power Saving Mode.
- Press button "D" to enable ("ON") or disable ("OFF") the power saving mode.
- Press button "A" to confirm settings.
- When the mode is enabled, the display shows "P.SAVE".
- Your watch may also enter sleep mode automatically. To return the watch to normal operation, place it in a well-lit area or press any button.
Current Time Mode
In Current Time Mode, press button "D" to switch between displaying the current time and the time of the last signal reception. Press button "B" to switch between displaying the current time and the day of the week.
Setting Time and Date
- Press and hold button "A" in Current Time Mode until the city code flashes, indicating the start of settings.
- Press button "A" to cycle through settings: Home City Code → Daylight Saving Time Mode (DST) → 12/24 Hour Time Format → Seconds → Hours → Minutes → Year → Month → Day → Power Saving Mode.
- If you select seconds (seconds digits flash), press button "D" to reset the seconds to 00. If you press button "D" when the seconds are between 30 and 59, the seconds will reset to 00 and the minutes will increment by 1. If the seconds are between 00 and 29, the minutes will not change.
- Use buttons "B" and "D" to change minute and other values.
- Press button "D" to switch between 12-hour and 24-hour formats. In the 12-hour format, "P" indicates PM.
- Press button "D" to enable or disable Daylight Saving Time. Each press cycles through: Auto DST ("A") → DST Off ("OF") → DST On ("ON") → Auto DST ("A"). Auto-DST is not available for all cities.
- Press button "D" to enable ("ON") or disable ("OFF") the power saving mode.
- Use buttons "B" and "D" to select the home city code. Holding down the buttons allows for faster adjustment.
The date can be set from January 1, 2000, to December 31, 2099.
- Press button "A" to confirm the date and time settings.
Backlight
Press button "L" in any mode to activate the backlight. The backlight uses an electro-luminescent (EL) panel; its brightness decreases with continuous use. During illumination, the watch may emit a faint sound; this is due to the vibrating backlight elements and is not a malfunction. The backlight is difficult to see in direct sunlight. Frequent use of the backlight shortens battery life.
Auto-Backlight
You can enable or disable the auto-backlight function by pressing and holding button "L" for 2 seconds in Current Time Mode. Auto-backlight activates automatically whenever your hand is tilted at an angle of approximately 40° relative to the ground. Do not use auto-backlight if it could impair your vision or distract you, such as when riding a motorcycle or bicycle.
Changing Display Illumination Duration
In Current Time Mode, press button "B" to cycle through illumination durations: 2.5 seconds – 1.5 seconds.
Technical Specifications
Accuracy
±15 seconds per month at normal temperature.
Current Time Mode
Hour, minutes, seconds, AM/PM indicator, year, month, day, day of the week. Automatic calendar from 2000 to 2099. 12/24 hour time format, DST (Daylight Saving Time).
World Time Mode
Current time in 30 cities (29 time zones). DST (Daylight Saving Time).
Other
Calibration signal (5 times daily), forced calibration, selection of signal transmission center.
Product Information
| Name: | Electronic / Electro-mechanical Quartz Wristwatches (Men/Women) |
| Brand: | CASIO |
| Manufacturer: | CASIO COMPUTER Co., Ltd. |
| Manufacturer Address: | 6-2, Hon-machi 1-chome, Shibuya-ku, Tokyo 151-8543, Japan |
| Importer: | OOO "Kasio", 127055, Moscow, ul. Suchevskaya, d.27, str. 1, Russia |
| Country of Origin: | Japan |
| Warranty Period: | 1 year |
| Authorized Service Center Address for Claims: | Specified in the warranty card |
Product complies with GOST 26270-98 (cl. 4.35)
Certificate of Conformity No. ROSS JP. АЯ46.Д42228 / ROSS JP. АЯ46.Д42071 / ROSS JP. АЯ46.Д42230
