Introduction
Thank you for choosing the GOLDEN HOUR Ultra-Thin Minimalist Sports Waterproof Digital Watch, model GH-1313M. This manual provides essential information for the proper setup, operation, and maintenance of your new watch. Please read it thoroughly to ensure optimal performance and longevity of your device.

Image: The GOLDEN HOUR GH-1313M digital watch, showcasing its minimalist design.
1. Setup
1.1 Initial Power On and Battery
Your watch comes with a pre-installed nonstandard battery. The watch should be operational upon arrival. If the display is blank, the battery may need to be activated or replaced. Refer to the "Maintenance" section for battery replacement instructions.
1.2 Time and Date Setting
To set the time and date:
- Press the MODE button repeatedly until the time setting mode is displayed (usually indicated by flashing digits).
- Use the RESET button to select the digit you wish to adjust (hours, minutes, year, month, day).
- Use the ST/STOP button to increase the value of the selected digit.
- Press the LIGHT button to toggle between 12-hour and 24-hour format if available in time setting mode.
- Once all settings are correct, press the MODE button to exit the setting mode.
1.3 Strap Adjustment
The watch features an adjustable rubber strap designed to fit wrist circumferences up to 9.8 inches (250mm). Adjust the buckle to achieve a comfortable and secure fit on your wrist.

Image: Diagram illustrating the adjustable wearing size of the watch strap, ranging from 160mm to 240mm.
2. Operating Instructions
2.1 Button Functions
- LIGHT: Activates the EL backlight for visibility in low-light conditions.
- MODE: Cycles through different modes: Time, Stopwatch, Alarm, Date.
- ST/STOP: Starts/stops functions in Stopwatch mode; adjusts values in setting modes.
- RESET: Resets functions (e.g., stopwatch); selects items in setting modes.
2.2 Time and Date Display
The watch displays time in either 12-hour or 24-hour format, along with the current date and day of the week. The wide-angle display ensures clear readability.

Image: Close-up view of the watch display, highlighting its easy readability and ultra-thin case design.
2.3 Stopwatch Function
To use the stopwatch:
- Press MODE until the stopwatch mode is shown (usually "00:00:00").
- Press ST/STOP to start timing.
- Press ST/STOP again to pause timing.
- Press RESET to clear the stopwatch to zero.
2.4 Alarm Function
To set the alarm:
- Press MODE until the alarm setting mode is displayed.
- Use RESET to select hours or minutes.
- Use ST/STOP to adjust the alarm time.
- Press MODE to confirm and exit.
- To activate/deactivate the alarm, press ST/STOP while in alarm mode. An alarm icon will appear/disappear.
2.5 EL Backlight
Press the LIGHT button to illuminate the display. The EL backlight ensures the time is clearly visible even in dimly lit environments.

Image: The watch display illuminated by its EL backlight, showing clear visibility in a dark setting.
3. Maintenance
3.1 Water Resistance
The watch is 5ATM (50 meters) waterproof, suitable for swimming in shallow water and cold showers. Do not press any buttons underwater. Avoid exposure to hot water, steam, or prolonged underwater activities such as diving, as this can compromise the water resistance seals.

Image: The GOLDEN HOUR digital watch partially submerged in water, illustrating its 5ATM waterproof capability.
3.2 Cleaning
Clean the watch case and strap with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials, which can damage the finish. For the rubber strap, mild soap and water can be used.
3.3 Battery Replacement
When the display becomes dim or stops functioning, the battery may need replacement. This watch uses one nonstandard battery. Battery replacement should ideally be performed by a qualified watch technician to ensure proper sealing and maintain water resistance. Opening the watch yourself may void the warranty and compromise its water resistance.

Image: The stainless steel back of the watch, indicating its water resistance and model information.
4. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Low or depleted battery. | Replace the battery. See Section 3.3. |
| Time is incorrect. | Time needs to be reset. | Adjust the time and date. See Section 1.2. |
| Water inside the watch. | Buttons pressed underwater, exposure to hot water/steam, or damaged seal. | Immediately take the watch to a qualified technician. Avoid further water exposure. |
| Alarm not sounding. | Alarm is not activated or set incorrectly. | Ensure the alarm is set and the alarm icon is displayed. See Section 2.4. |
If you encounter issues not listed here or if the suggested solutions do not resolve the problem, please contact customer support.
5. Specifications
- Model Number: GH-1313M
- Brand: GOLDEN HOUR
- Case Thickness: Approximately 7.5mm - 8mm
- Strap Material: Rubber
- Strap Length: Adjustable, fits up to 9.8 inches (250mm) wrist circumference
- Water Resistance: 5ATM (50 meters / 164 feet) - Suitable for swimming in shallow water and cold showers. Not for diving or hot water.
- Display: Digital, EL Backlight, Wide-Angle
- Functions: 12/24H Time, Stopwatch, Alarm, Date, Day
- Battery: 1 Nonstandard Battery (required)
- Weight: Approximately 58g
- Package Dimensions: 15.2 x 6.4 x 1.9 cm
- Date First Available: 16 April 2023

Image: Detailed diagram showing the watch dimensions, including case diameter, strap width, and overall length.
6. Warranty and Support
6.1 Warranty Information
GOLDEN HOUR offers a 12-month after-service period for this product. This warranty covers manufacturing defects under normal use. It does not cover damage caused by misuse, accidents, unauthorized repairs, or normal wear and tear.
6.2 Customer Support
For any questions, technical assistance, or warranty claims, please contact GOLDEN HOUR customer service through your purchase platform. Please have your model number (GH-1313M) and purchase details ready when contacting support.