Casio G-SHOCK Watch User Manual

International Warranty Network

Important Information

Battery

The battery installed at the factory may discharge during shipping and storage. If power is insufficient (e.g., dim display), replace the battery at an authorized CASIO service center or dealer.

Water Resistance

Watches are classified by water resistance levels (I to V). Do not press buttons underwater, adjust the crown underwater, or unscrew the crown underwater. Rinse with fresh water and dry if exposed to salt water. Avoid prolonged contact of leather straps with water.

Note: WR (Water Resistant) is based on ISO 2281. 5 Bar (50 meters) is suitable for showering and brief swimming. 10 Bar (100 meters) is suitable for swimming and snorkeling. 20 Bar (200 meters) is suitable for scuba diving (excluding deep dives requiring helium-oxygen mixture).

Care and Maintenance

General Handling

Avoid extreme temperatures. Handle with care, avoid drops. Do not overtighten the strap; a finger should fit between the strap and your wrist.

Cleaning

Use a dry soft cloth or a soft cloth dampened with a mild neutral detergent solution. Never use volatile agents like gasoline, solvents, or spray cleaners.

Storage

Store in a dry place when not in use.

Chemical Exposure

Avoid contact with gasoline, cleaning solvents, spray aerosols, adhesives, paint, etc. Chemical reactions can damage gaskets, case, and polish.

Silk-Screened Straps

Be careful when cleaning straps with silk-screened images to avoid damaging the designs.

Plastic Straps

A white powdery substance on plastic straps is harmless and can be wiped off. Sweat, moisture, or high humidity can damage or crack plastic straps. Wipe clean with a soft cloth.

Fluorescent Cases and Straps

Prolonged direct sunlight or moisture can cause fluorescent colors to fade. Wipe off moisture promptly. Contact with other wet surfaces can cause discoloration.

Condensation

Slight condensation may form inside the glass due to temperature changes; this is normal and not a defect.

Modes and Operations

Current Time Mode

Displays current time, date, and day of the week.

Setting the Current Time and Date

Use buttons A, C, E, D to set seconds, minutes, hours, day, month, and year. Button E increments values, Button D cycles through settings. Button A confirms. The day of the week is set automatically with the date. The date can be set from January 1, 1995, to December 31, 2039.

Diagram Description: Shows watch buttons labeled A, B, C, D, E. Button A is used to enter setting mode and confirm. Button C cycles through the digits to be set (Seconds, Minutes, Hours, Day, Month, Year). Button E increases the value of the flashing digit. Button D can switch between 12-hour and 24-hour formats. Pressing E when seconds are 30-59 adds a minute.

Alarm Mode

Allows setting alarms and hourly chime.

Connecting/Disconnecting Alarm and Hourly Chime

In Alarm Mode, press button E to cycle through the settings: All alarms off, Alarm only, Hourly chime only, Both alarms and hourly chime on. An indicator appears on the display when a function is active.

Setting Alarms

Set alarm time (hour, minute) for daily alarms, specific dates, or monthly alarms. Use button E to adjust values, C to cycle through digits, and A to confirm. For daily alarms, enter "-" for the day and month. For monthly alarms, enter "-" for the month.

Interrupting Alarm Sound

Press any button to stop the alarm sound.

Timer Mode

Countdown timer with a range from 1 second to 24 hours. A 10-second alarm sounds when the timer reaches zero.

Setting the Timer

In Timer Mode, press button A to enter setting mode. Button C cycles through Hours, Minutes, and Seconds. Button E increments the flashing digit. To set 24 hours, set the time to "0:0000". Press A to return to the timer display.

Diagram Description: Shows watch buttons labeled A, C, D, E. Button A enters setting mode. Button C cycles through Hours, Minutes, Seconds. Button E increments the value. Button D is shown near the timer display.

Using the Timer

Press E to start/stop the timer. Press and hold A to reset the timer to its initial setting.

Auto-Repeat Function

In Timer Mode, press button D to enable or disable the auto-repeat function. When enabled, the timer automatically restarts after reaching zero. Press E to stop, and A (hold) to reset manually.

Diagram Description: Shows the timer display with an indicator for the auto-repeat function.

Stopwatch Mode

Measures elapsed time, split times, and records the first two results. Maximum range: 23 hours, 59 minutes, 59.99 seconds.

Measuring Elapsed Time

Press E to start the stopwatch. Press E again to stop. Press B to reset to zero.

Measuring Split Times

Press E to start. Press B to display the split time (stopwatch continues internally). Press B again to clear the split time and resume displaying the total elapsed time. Repeat steps 2 and 3 as needed. Press E to stop, then B to reset.

Recording Two Results

Press E to start. Press B when the first athlete finishes to record their time. Press E when the second athlete finishes. Press B to display the second athlete's time. Press B again to reset.

Diagram Description: Shows watch buttons labeled A, B, C, D, E. The display shows time in hours, minutes, seconds, and hundredths of a second. The stopwatch mode indicator is visible.

Product Information