Casio G-Shock GA-710TU-1A3 Digital Analog Watch User Manual

1. Introduction

This manual provides detailed instructions for the proper use and care of your Casio G-Shock GA-710TU-1A3 Digital Analog Watch. Designed for durability and functionality, this timepiece combines utilitarian practicality with robust G-SHOCK toughness. Please read this manual thoroughly to ensure optimal performance and longevity of your watch.

2. Key Features

• Model: GA-710TU-1A3
• Display: Analog-Digital combination
• Movement: Japanese Quartz
• Water Resistance: 200 Meters (20 BAR)
• Shock Resistance: G-SHOCK's signature shock-absorbing structure
• Case/Band Material: Resin
• Crystal: Mineral Glass
• Power Source: Battery Powered (1 LR44 battery included)
• Dimensions: 53.4mm case diameter, 57.5mm case thickness
• Weight: Approximately 125 Grams
• Additional Functions: World Time, Stopwatch, Countdown Timer, Multiple Daily Alarms, Hourly Time Signal, Auto LED Light.

3. Watch Components and Button Functions

Familiarize yourself with the watch's buttons and display elements.

Figure 3.1: Front view of the Casio G-Shock GA-710TU-1A3 watch, showing the analog and digital displays, and the main function buttons.

• A (Adjust Button - Top Left): Used to enter and exit setting modes, and to confirm settings.
• B (Reverse Button - Top Right): Used to scroll backward through settings or modes. Also activates the LED backlight.
• C (Mode Button - Bottom Left): Used to cycle through the different watch modes (Timekeeping, Stopwatch, Countdown Timer, Alarm, World Time).
• D (Forward Button - Bottom Right): Used to scroll forward through settings or modes.

Figure 3.2: Side view of the watch, highlighting the textured buttons for easy grip and operation.

Figure 3.3: Back view of the watch, showing the stainless steel case back with G-SHOCK branding and water resistance rating.

4. Initial Setup: Setting Time and Date

1. In Timekeeping Mode, hold down button A (Adjust) for about three seconds until the city code starts flashing on the digital display. This indicates you are in the setting mode.
2. Use buttons B (Reverse) and D (Forward) to select your desired city code (time zone).
3. Press button C (Mode) to move through the settings: DST (Daylight Saving Time) → 12/24-hour format → Seconds → Hour → Minute → Year → Month → Day.
4. For each setting, use buttons B and D to change the value.
5. Once all settings are correct, press button A to exit the setting mode. The watch will automatically adjust the analog hands to match the digital time.

5. Operating Instructions for Various Modes

Press button C (Mode) to cycle through the following modes:

5.1. Stopwatch Mode (STW)

• To start/stop the stopwatch: Press button D.
• To reset the stopwatch: While stopped, press button A.
• To record split times: Press button A while the stopwatch is running. Press A again to release the split time and resume normal stopwatch operation.
• The stopwatch measures up to 1/1000th of a second and has a capacity of 99 hours, 59 minutes, 59.999 seconds.

5.2. Countdown Timer Mode (TMR)

• To set the countdown time: In TMR mode, hold button A until the hour setting flashes. Use B and D to adjust hours, minutes, and seconds. Press C to move between settings. Press A to confirm.
• To start/stop the countdown: Press button D.
• To reset the countdown: While stopped, press button A.
• The countdown timer has a range of 1 minute to 24 hours.

5.3. Alarm Mode (ALM)

• The watch features 5 daily alarms (AL1-AL5) and an hourly time signal (SIG).
• To set an alarm: In ALM mode, use button D to select the desired alarm (AL1-AL5 or SIG). Hold button A until the hour setting flashes. Use B and D to adjust the hour and minute. Press C to move between settings. Press A to confirm.
• To turn an alarm ON/OFF: In ALM mode, select the alarm using D, then press A to toggle ON/OFF.
• To stop an alarm sound: Press any button.

5.4. World Time Mode (WT)

• In WT mode, use buttons B and D to scroll through different city codes and view the current time in that zone.
• The watch supports 31 time zones (48 cities + UTC).

5.5. Illumination (LED Backlight)

• To manually illuminate the display: Press button B.
• Auto LED Light: To enable/disable the Auto LED Light, hold button B for approximately three seconds in Timekeeping Mode. The "A.LIGHT" indicator will appear/disappear. When enabled, the display will illuminate automatically when you angle your wrist towards your face in dim lighting.
• Illumination Duration: The backlight duration can be set to 1.5 seconds or 3 seconds. This setting is typically found within the Timekeeping Mode's setup options (accessed by holding button A).

6. Maintenance

• Cleaning: Wipe the watch with a soft, dry cloth. For resin bands, use water and a mild soap, then rinse thoroughly and dry. Avoid harsh chemicals.
• Water Resistance: The watch is water resistant to 200 meters. It is suitable for swimming and diving. Do not operate buttons underwater. After exposure to saltwater, rinse the watch with fresh water and dry it thoroughly.
• Battery Replacement: The watch uses one LR44 battery. Battery life varies depending on usage. When the display becomes dim or functions malfunction, replace the battery. It is recommended to have battery replacement performed by an authorized Casio service center to ensure water resistance integrity.
• Temperature Exposure: Avoid exposing the watch to extreme temperatures, direct sunlight for prolonged periods, or strong magnetic fields.

7. Troubleshooting

• Incorrect Time/Date: If the time or date is incorrect, re-enter the Timekeeping Mode setting and adjust as described in Section 4. Ensure the correct city code and DST setting are selected.
• Analog Hands Do Not Match Digital Time: If the analog hands are out of sync with the digital time, perform a hand alignment correction. Refer to the full Casio module manual (Module No. 5081, if applicable) for specific instructions on hand alignment. This usually involves entering a special setting mode and manually adjusting the hands.
• Display is Dim/Blank: This usually indicates a low battery. Replace the LR44 battery as soon as possible.
• Buttons Not Responding: Ensure the watch is not in a frozen state due to extreme cold. If the issue persists, a full reset might be necessary (refer to the detailed module manual), or seek professional service.

8. Specifications

9. Warranty and Support

Your Casio G-Shock GA-710TU-1A3 watch comes with a limited warranty. For detailed information regarding warranty coverage, terms, and conditions, please refer to the International Warranty Card included with your product or visit the official Casio website. For technical support, service, or additional inquiries, please contact Casio customer service or an authorized service center.

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