CASIO Module No. 3195 GW-2300/2310

International Warranty Network

The International Warranty Card is included with your G-SHOCK watch. This translation is not the international warranty itself.

The International Warranty for CASIO G-SHOCK watches purchased in Russia and Ukraine is valid ONLY outside of Russia and Ukraine. Service for CASIO G-SHOCK watches within Russia and Ukraine is provided based on the manufacturer's regional warranty card. For information on other countries, see G-SHOCK INTERNATIONAL WARRANTY.

International Warranty Network for CASIO G-SHOCK Watches

International Warranty Terms for CASIO G-SHOCK Watches

CASIO Computer Co., Ltd. (CASIO) guarantees that your CASIO G-SHOCK watch will be repaired free of charge by a member of the CASIO International Warranty Network (see contact information) under the following conditions.

1. To receive warranty service, you must present the warranty card filled out by the seller and the purchase receipt.
2. This warranty is valid for one year from the date of original purchase if the product malfunctions under normal use in accordance with the user's manual (instructions). After this period, the customer will be charged for repairs.
3. The warranty does not cover:
   • Malfunctions due to improper, rough, or negligent handling.
   • Malfunctions due to fire or other natural disasters.
   • Malfunctions due to improper repair or adjustment performed by a non-authorized Casio service center.
   • Damage or wear to the case, band (strap), or battery.
   • Failure to present the purchase document when submitting for repair.
   • Expiration of the warranty period.
4. If you need to send your CASIO G-SHOCK watch to a member of the CASIO International Warranty Network for repair, pack it securely, including this warranty card, purchase receipt, and a description of the malfunction.
5. CASIO and its International Warranty Network members are not liable for any loss, damage, or alteration of data, or for the loss of data stored in the watch.
6. This warranty is the sole express or implied basis for warranty repair of CASIO G-SHOCK watches outside of Russia and Ukraine.
7. These warranty services are provided only by members of the CASIO International Warranty Network.
8. These warranty services are provided only to the original purchaser.

Rights arising from this warranty supplement and do not affect the statutory rights of the buyer.

IMPORTANT INFORMATION TO READ FIRST

Battery

The battery installed in the watch at the factory may discharge during shipping and storage. If you notice the first signs of insufficient power (dim display), replace the battery at your nearest authorized CASIO service center or a CASIO distributor.

Water Resistance

For all categories of watches, do not:

• Press buttons underwater.
• Set hands underwater.
• Unscrew the crown underwater.

If the watch is exposed to saltwater, rinse it thoroughly and dry it. Do not wear a watch with a leather band while swimming. Avoid prolonged contact of a leather band with water.

Watches are classified by water resistance rating (from I to V) according to their degree of protection. Check your watch's rating using the table below to determine its correct usage.

Notes

1. Watches are not protected against water. Avoid any contact with moisture.
2. WR (Water Resistant) means the model is waterproof according to ISO 2281. Short-term contact with water will not cause any problems.
3. With 5 BAR (50 meters) water resistance, the watch can withstand water pressure of the indicated level and can be used during showering and short-term swimming.
4. 10 BAR (100 meters) water resistance means the watch can be used during normal swimming and snorkeling.
5. 20 BAR (200 meters) water resistance means the watch can be used for scuba diving (except for depths requiring a helium-oxygen mixture).

Care for Your Watch

• Never attempt to open the case or remove the back cover.
• The rubber gasket that protects the watch from water and dust should be replaced every 2-3 years.
• If moisture gets inside the watch, have it checked immediately by your nearest dealer or CASIO distributor.

General Care

• Do not expose the watch to extreme temperatures.
• Although the watch is designed for normal use, avoid rough handling and do not drop it.
• Do not fasten the band too tightly. You should be able to fit a finger between your wrist and the band.
• To clean the watch and band, use a dry, soft cloth, or a soft cloth dampened with a solution of mild neutral detergent and water. Never use volatile substances (e.g., gasoline, solvents, spray cleaners, etc.).
• When not using your watch, store it in a dry place.
• Avoid exposing the watch to gasoline, cleaning solvents, aerosol sprays, adhesives, paint, etc. Chemical reactions caused by these materials can damage gaskets, the case, and the watch's polish.
• Some watch bands feature silk-screened graphics. Be careful when cleaning such bands to avoid damaging the designs.
• For watches with plastic bands: You may notice a whitish powdery substance on the band. This substance is harmless to your skin or clothing and can be easily removed by wiping with a cloth. Exposure of the plastic band to sweat or moisture, or storing it in high humidity conditions, can cause damage, tearing, or cracking of the band. To ensure a long service life for the plastic band, wipe it clean of dirt and water with a soft cloth whenever possible.
• For watches with fluorescent cases and bands: Prolonged exposure to direct sunlight can gradually cause the fluorescent color to fade. Prolonged contact with moisture can also cause the fluorescent color to fade. If any moisture gets on the watch surface, wipe it off as soon as possible. Prolonged contact with any other wet surface can cause discoloration of the fluorescent color. Check that moisture has been removed from the fluorescent surface and avoid contact with other surfaces. Strong friction of a surface with fluorescent paint against another surface can transfer the fluorescent paint to that surface.
• CASIO COMPUTER CO., LTD. is not responsible for any damage that may occur from the use of this watch and does not accept any claims from third parties.
• Slight condensation may form on the inside of the glass when the product is used in conditions of rapid temperature change. This is due to physical laws and is not a defect.

GENERAL DESCRIPTION OF OPERATING MODES

The illustration shows the watch in Timekeeping Mode.

Pressing the 'C' button repeatedly cycles through the modes in the following order: Timekeeping Mode — World Time Mode — Alarm Mode — Stopwatch Mode — Countdown Timer Mode — Timekeeping Mode.

Press the 'L' button to turn on the backlight in any mode.

Calibration

This watch automatically corrects the time based on the calibration signal. However, you can also set the time manually.

Before you start using the watch, set your current city code:

1. In Timekeeping Mode, press and hold the 'A' button for a few seconds until the city code flashes, indicating it is selected for setting.
2. Use the 'D' and 'B' buttons to select your current city.
3. Press the 'A' button to complete the setting.

Under normal operation, the current time for your location will appear on the display immediately after setting the city code. If this does not happen, it will be set after the auto-calibration process, which occurs during the night and early morning. You can also manually set the current time.

Calibration Signal

This watch receives a calibration signal and updates the time accordingly.

In Europe, signal transmission centers are located in Mainflingen, Germany, and Anthorn, England. The signal covers a radius of 500 km. The signal may be weak at distances over 1500 km.

In the United States, the signal transmission center is located in Fort Collins. The signal covers a radius of 1000 km. The signal may be weak at distances over 3000 km.

In Japan, signal transmission centers are located in Fukushima and Fukuoka/Saga. The signal covers a radius of 500 km. The signal may be weak at distances over 1000 km.

In China, signal transmission centers are located in Shangqiu. The signal covers a radius of 500 km. The signal may be weak at distances over 1500 km. Cities such as Shanghai and Beijing are within 500 km of this location, while Hong Kong, Changchun, and Chengdu are within 1500 km.

The transmitted signal is also affected by natural conditions, atmospheric pressure, and temperature. Signal weakening can also be caused by the following factors:

• The watch being near a TV, computer, or other home appliance.
• Being in a subway or tunnel.
• Being near a radio station or transmission tower.
• Being in an airport, train station, or high-speed road.
• Electrostatic voltage.

There are two types of calibration signal reception: Auto-calibration and Manual calibration.

Auto-calibration: When enabled, the watch automatically receives the signal six times each day and corrects the time. This occurs during the night or early morning. Auto-calibration only occurs when the watch is in Timekeeping or World Time Mode. The signal reception takes 2 to 14 minutes. Do not move the watch during reception.

Manual calibration: You can manually initiate signal reception by pressing a button.

1. Hold the watch horizontally.
2. In Timekeeping Mode, press and hold the 'D' button for two seconds until the 'RCVD' indicator flashes, indicating the start of signal reception.
3. Signal reception takes 2 to 7 minutes, but may sometimes take up to 14 minutes. Be careful not to move the watch during reception.
4. If signal reception is successful, the watch display will show the 'GET' indicator, along with the date and time of reception.
5. The current time will be automatically updated.
6. Press the 'D' button to return to Timekeeping Mode after reception is complete.

Press the 'D' button to stop the signal reception process and return to Timekeeping Mode. The watch will also automatically return to Timekeeping Mode if no buttons are pressed for 1-2 minutes.

If the last signal reception was unsuccessful but the one before it was successful, the 'RCVD' indicator will still appear on the display.

Auto-calibration Signal

When enabled, the auto-calibration signal is automatically received six times (during the night or early morning). Auto-calibration only occurs when the watch is in Timekeeping or World Time Mode. Signal reception takes 2 to 14 minutes. Be careful not to move the watch during reception.

Enabling/Disabling Auto-Calibration Signal

1. In Timekeeping Mode, press the 'D' button to view the data of the last reception.
2. Then, press and hold the 'A' button until the 'ON' or 'OFF' indicator flashes, indicating the start of setting.

Note that auto-calibration signal settings are not possible if your current city code does not support signal reception.

3. Press the 'D' button to turn the auto-calibration signal ON or OFF.
4. Press the 'A' button to complete the setting.

Viewing Last Calibration Signal Data

In Timekeeping Mode, press the 'D' button to view the data of the last calibration signal.

* The start time for the next day.

Auto-calibration occurs at night and in the early morning, so the times shown in this table are for those periods.

WORLD TIME MODE

This mode allows you to view the local time in any of 48 cities (31 time zones).

World Time values are automatically set to match the current time. The World Time value is synchronized with the current time, so there is no need to set it manually.

To view the time in other cities, use the 'D' and 'B' buttons.

Daylight Saving Time

1. Use the 'D' and 'B' buttons to select the city for which you want to set Daylight Saving Time.
2. Press and hold the 'A' button for a few seconds to turn Daylight Saving Time ('DST') ON or OFF.

ALARM MODE

You can set five different daily alarms. The alarm will sound for 10 seconds at the set time.

You can also set an hourly chime mode. This will produce two short beeps at the start of each hour.

Setting an Alarm

1. In Alarm Mode, press the 'D' button to select the alarm type: AL1, AL2, AL3, AL4, SNZ (snooze alarm) - SIG (hourly chime).
2. After selecting the alarm type, press and hold the 'A' button. The hour digits will flash, indicating they are selected for setting. The alarm will automatically turn ON at this point.
3. Press the 'C' button to cycle through the setting items: Hours - Minutes - Hours.
4. Press the 'D' button to increase and the 'B' button to decrease the selected value. Holding down a button allows you to change the value at an accelerated rate.

The format (12-hour or 24-hour) corresponds to the format you selected when setting the current time.

When using the 12-hour format, be careful to set the time correctly for AM or PM.

5. Press the 'A' button to return to Alarm Mode after setting.

Checking Alarm Sound

In Alarm Mode, press the 'D' button to check the alarm sound.

Enabling/Disabling Alarm Sound

1. In Alarm Mode, press the 'D' button to select the alarm type.
2. After selecting the alarm type, press the 'B' button to turn it ON or OFF.

When any of the 4 alarms are selected, the 'AL' indicator appears on the display. When the snooze alarm is selected, the 'SNZ' indicator appears on the display.

Enabling/Disabling Hourly Chime

1. In Alarm Mode, press the 'D' button to select the hourly chime.
2. After selecting the hourly chime, press the 'B' button to turn it ON or OFF.

When the hourly chime is enabled, the 'SIG' indicator appears on the display.

STOPWATCH MODE

The Stopwatch Mode allows you to measure elapsed time, split times, and dual finish times.

The total elapsed time range is limited to 23 hours, 59 minutes, 59.99 seconds.

Measuring Elapsed Time

D (Start) – D (Stop) – D (Restart) – D (Stop) – B (Reset).

Measuring Split Time

D (Start) – B (Split time. 'SPL' indicator appears) – B (Restart) – D (Stop) – B (Reset).

Dual Finish

D (Start) – B (Split. First finisher's time appears on display) – D (Stop. Second finisher's time) – B (Cancel split. Second finisher's time appears on display) – B (Reset).

COUNTDOWN TIMER MODE

The Countdown Timer can be set from one minute to 24 hours. When the countdown reaches zero, a long beep will sound.

Setting the Timer

1. In Timer Mode, when the start time is displayed, press and hold the 'A' button. The start time display will flash, indicating it is selected for setting.
2. Press the 'C' button to cycle through the setting items: Hours - Minutes - Hours.
3. Use the 'D' button to increase and the 'B' button to decrease the selected value.

If you want to set a 24-hour countdown, enter '0:00'.

5. Press the 'A' button to complete the setting.

Using the Timer

1. In Timer Mode, press the 'D' button to start the countdown.
2. Press the 'D' button again to stop the countdown.

You can resume the countdown by pressing the 'D' button.

3. After stopping the countdown, press the 'B' button to reset the timer to the start time.

TIMEKEEPING MODE

In Timekeeping Mode, press the 'B' button to switch the lower display between the day of the week/date and the World Time city code/time in that city.

Setting Time and Date

1. In Timekeeping Mode, press the 'A' button. The city code display will flash, indicating it is selected for setting.
2. Press the 'C' button to cycle through the setting items: City Code - Daylight Saving Time (DST) - 12/24 Hour Format - Seconds - Hours - Minutes - Year - Month - Day - Button Tone ON/OFF - Backlight Duration Setting - Power Saving Mode.
3. If you select seconds for correction (seconds display flashes), press the 'D' button to reset the seconds to 00. If you press '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.
4. To increase values (minutes, etc.), use the 'D' button; to decrease, use the 'B' button. Holding down a button allows you to change values at an accelerated rate.

You can set the year from 2000 to 2099.

5. In the Daylight Saving Time setting, use the 'D' button to make the following settings: 'AUTO' (automatic DST ON/OFF), 'OFF' (DST OFF), 'ON' (DST ON).

Auto-switching is available only for the following cities selected as your current city code: Lisbon, London, Madrid, Paris, Rome, Berlin, Stockholm, Athens, Moscow, Taipei, Seoul, Tokyo, Honolulu, Ankara, Vancouver, Los Angeles, Edmonton, Denver, Mexico City, Chicago, Miami, Toronto, New York, Halifax, St. John's.

6. Press the 'D' button to switch between 12-hour and 24-hour formats. With the 12-hour format, the 'P' indicator shows PM.
7. Use the 'D' and 'B' buttons to select your desired city code.
8. In the Button Tone ON/OFF setting, press the 'D' button to turn the button tone ON (indicator '•') or OFF (indicator 'MUTE').
9. In the Backlight Duration setting, press the 'D' button to select the duration: 1.5 seconds or 3 seconds.
10. Press the 'A' button to return to Timekeeping Mode after setting.

Backlight

Press the 'L' button in any mode to turn on the backlight.

The backlight of these watches uses electro-luminescent (EL) panels, whose power decreases after a certain period of use.

The watch emits an audible signal while the display is illuminated. This is due to the vibration of the backlight elements and is not an indication of malfunction.

The backlight is difficult to see if direct sunlight falls on the watch. Frequent use of the backlight reduces battery life.

Changing Backlight Duration

1. In Timekeeping Mode, press and hold the 'A' button until the values flash, indicating the start of setting.
2. Press the 'C' button ten times to access the backlight duration settings.
3. Press the 'D' button to select the duration: 1.5 seconds or 3 seconds.
4. Press the 'A' button to complete the setting.

Auto-Backlight

Auto-Backlight turns on automatically whenever your hand is tilted at an angle of 40° or more relative to the ground. Do not use the auto-backlight function when light could damage or distract you, such as while riding a motorcycle or bicycle.

To turn on the auto-backlight function in Timekeeping Mode, press and hold the 'L' button for 3 seconds.

Button Tone ON/OFF

1. In Timekeeping Mode, press and hold the 'A' button until the values flash, indicating the start of setting.
2. Press the 'C' button nine times to access the button tone settings.
3. Press the 'D' button to turn the button tone ON (indicator '•') or OFF (indicator 'MUTE').
4. Press the 'A' button to complete the setting.

POWER SOURCE

These watches are powered by a solar battery and a backup battery that is charged by the solar battery.

If your watch is kept in the dark for extended periods, the charge of the backup battery will decrease.

Power Indicator

The power indicator is located at the top of the display.

Be careful not to place your watch under direct sunlight for extended periods, as this may cause malfunctions.

Battery Charging

After a full charge, normal operation will continue for approximately 10 months under the following conditions:

• Watch is not exposed to direct sunlight.
• Backlight used 1.5 seconds/day.
• Alarm sound used 10 seconds/day.
• 4 minutes of calibration signal reception per day.
• 18 hours of operation, 6 hours (per day) in sleep mode.

By exposing your watch to sunlight daily, you ensure continuous battery charging:

POWER SAVING MODE

Sleep mode saves the watch's battery charge when it is kept in the dark. The following table shows the availability of watch functions when in sleep mode:

Enabling/Disabling Power Saving Mode

1. In Timekeeping Mode, press and hold the 'A' button until the city code flashes, indicating it is selected for setting.
2. Press the 'C' button 11 times to access the Power Saving Mode settings.
3. Press the 'D' button to turn the mode ON or OFF.
4. Press the 'A' button to complete the setting.

The mode indicator will appear on the display when Power Saving Mode is enabled.

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.

World Time City Codes and Time Differences

By Presidential Decree of the Russian Federation, since June 2011, daylight saving time has been abolished throughout Russia. Please be mindful of this information when setting your watch.

TECHNICAL SPECIFICATIONS

PRODUCT INFORMATION