1. Introduction and Overview
The Casio G-Shock GA-700CM-3A is an analog-digital watch designed for durability and functionality. It features a robust construction engineered to resist mechanical shock and vibration, making it suitable for various activities. This model incorporates a distinctive camouflage design and offers a range of features including world time, stopwatch, countdown timer, and an electroluminescent backlight.
Key features include:
- Shock Resistant construction
- 200 Meter Water Resistance
- Super Illuminator LED Light with Afterglow
- World Time (31 time zones, 48 cities + UTC)
- Stopwatch and Countdown Timer functions
- Daily Alarms and Hourly Time Signal

Image 1: Front view of the Casio G-Shock GA-700CM-3A watch. The watch features a green camouflage pattern on its case and band. The dial is black with analog hands and two digital displays. Buttons are visible on the sides, labeled 'ADJUST', 'RESET', 'MODE', 'START', and a front 'ILLUMINATOR' button.
2. Initial Setup
2.1 Battery Information
The watch comes with one Lithium Metal battery pre-installed. The estimated battery life for this non-solar analog-digital G-Shock model is approximately 5 years.
2.2 Setting the Home City and Time
- In the Timekeeping Mode, press and hold the ADJUST button (top left) until the city code starts to flash on the digital display.
- Use the START button (bottom right) and RESET button (top right) to select your desired Home City code.
- Press the MODE button (bottom left) to cycle through other settings such as DST (Daylight Saving Time), 12/24-hour format, seconds, hour, minute, year, month, and day.
- Use the START and RESET buttons to adjust the flashing value.
- After configuring all settings, press the ADJUST button to exit the setting screen. The analog hands will automatically adjust to the digital time.
3. Operating Instructions
3.1 Mode Navigation
Press the MODE button (bottom left) to cycle through the different modes:
- Timekeeping Mode (current time and date)
- World Time Mode (WT)
- Stopwatch Mode (STW)
- Countdown Timer Mode (TMR)
- Alarm Mode (ALM)
3.2 Using the Super Illuminator LED Light
Press the front ILLUMINATOR button (located below the 6 o'clock position) to illuminate the digital display. The light duration can be set to 1.5 or 3 seconds via the settings.
3.3 Stopwatch Function
In Stopwatch Mode (STW):
- Press START (bottom right) to start and stop the stopwatch.
- Press RESET (top right) to reset the stopwatch to zero.
3.4 Countdown Timer Function
In Countdown Timer Mode (TMR):
- Press ADJUST to set the countdown start time.
- Use START and RESET to adjust the time.
- Press START to begin the countdown.
3.5 Alarm Function
In Alarm Mode (ALM):
- Press ADJUST to select an alarm number and set the alarm time.
- Use START and RESET to adjust the time.
- Press MODE to toggle the alarm on/off or activate the hourly time signal (SIG) or snooze (SNZ) function.
4. Maintenance
4.1 Cleaning
Wipe the watch regularly with a soft, dry cloth to remove dirt and moisture. For stubborn grime, use a mild soap solution and a soft brush, then rinse thoroughly with fresh water and dry completely.
4.2 Water Resistance Precautions
The watch is water resistant to 200 meters. This means it is suitable for showering, swimming, and diving. However, avoid operating buttons while the watch is submerged in water to prevent water ingress. After exposure to saltwater, rinse the watch with fresh water and dry it thoroughly.
4.3 Battery Replacement
When the battery runs low, the display may become dim or functions may become erratic. Battery replacement should be performed by a qualified technician to ensure proper sealing and maintain water resistance.
5. Troubleshooting
5.1 Incorrect Time Display
If the analog hands do not match the digital time, or if the time is incorrect:
- Verify your Home City setting and Daylight Saving Time (DST) status.
- Perform a manual hand alignment if necessary (refer to the full Casio module manual for detailed steps, typically involving holding ADJUST in Timekeeping Mode and then pressing MODE to enter hand alignment).
5.2 Digital Display is Blank or Dim
This may indicate a low battery. Arrange for battery replacement by a professional service.
5.3 Buttons Not Responding
Ensure the watch is not in a mode that locks button operations. If the issue persists, a full reset may be required (consult a service center) or the battery may be depleted.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | GA-700CM-3 |
| Case Dimensions (approx.) | 57.5 x 53.4 x 18.4 mm (Length x Width x Thickness) |
| Item Weight | 2.56 ounces |
| Water Resistance | 200 Meters (20 BAR) |
| Battery Type | 1 Lithium Metal battery (included) |
| Battery Life | Approximately 5 years |
| Light | Super Illuminator LED Light with Afterglow |
| Time Zones | 31 time zones (48 cities + UTC) |
7. Warranty and Support
Your Casio G-Shock watch is covered by a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included with your purchase for specific terms and conditions, including the warranty period and coverage details.
For further assistance, detailed module instructions, or to locate an authorized service center, please visit the official Casio website or contact Casio customer support in your region.





