Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your Timex Unisex Digital 43mm Watch. Designed for durability and functionality, this watch features a 43mm black case, an 8-inch black band, a clear digital dial, and an acrylic lens. It is water-resistant up to 50 meters, making it suitable for various daily activities.

Figure 1: Front view of the Timex Digital 43mm Watch.
Setup
Setting Time and Date
Your Timex digital watch typically has a "MODE" button to cycle through functions and a "SET" or "ADJUST" button for modifications. Refer to the watch face for button labels.
- Press the MODE button repeatedly until the time setting mode is displayed (often indicated by flashing digits).
- Use the SET or ADJUST button to change the flashing digit (hours, minutes, seconds).
- Press MODE again to move to the next setting (e.g., minutes, then date, month, day of week).
- Once all settings are correct, press SET or MODE (depending on model) to exit the setting mode.
Activating INDIGLO® Night-Light
The INDIGLO® night-light illuminates the watch display for easy viewing in low-light conditions. Press the designated INDIGLO® button (often located on the side or top of the watch) to activate it. The light will remain on for a few seconds.
Operating Instructions
Mode Navigation
The MODE button allows you to cycle through the watch's various functions, such as Time, Chronograph (Stopwatch), Alarm, and Dual Time.
Using the Chronograph (Stopwatch)
- Press MODE until "CHRONO" or "STOPWATCH" appears on the display.
- Press START/STOP to begin timing.
- Press START/STOP again to pause/stop the timer.
- Press RESET (often the same button as SET or ADJUST in chronograph mode) to clear the time.
Setting and Using the Alarm
- Press MODE until "ALARM" is displayed.
- Use the SET or ADJUST button to set the desired alarm time.
- Press MODE to confirm and exit.
- To activate/deactivate the alarm, press the designated ALARM ON/OFF button (refer to watch face for specific label).
Dual Time Function
The dual time feature allows you to track a second time zone.
- Press MODE until "DUAL TIME" or "T2" is displayed.
- Use the SET or ADJUST button to set the second time zone.
- Press MODE to confirm and exit.
Water Resistance
This watch is water resistant up to 50 meters (164 feet). This means it is suitable for recreational swimming in shallow water. It is not suitable for diving or snorkeling. Do not press any buttons while the watch is wet or submerged, as this can compromise the water resistance seal.

Figure 2: Side view of the watch, highlighting button placement.
Maintenance
Cleaning Your Watch
To clean your watch, wipe it with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials, as these can damage the case, lens, or band. For stubborn dirt, a mild soap solution can be used, followed by thorough rinsing with clean water and drying.
Battery Replacement
The watch uses one Lithium Metal battery (CR2025 CELL). When the display dims or functions become erratic, it may be time to replace the battery. It is recommended to have the battery replaced by a qualified watch technician to ensure the water resistance seal is maintained.
Band Care
The watch features an integrated band. While durable, prolonged exposure to extreme temperatures, direct sunlight, or harsh chemicals can affect its longevity. Clean the band regularly with a damp cloth. Please note that the band is integrated into the watch design and is not designed for user replacement.

Figure 3: Rear view of the watch, showing the battery compartment area.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is dim or blank. | Low battery. | Replace the battery (CR2025 CELL). Professional replacement is recommended. |
| Buttons are unresponsive. | Watch may be in a locked mode or internal issue. | Try pressing all buttons firmly. If unresponsive, a soft reset (removing and reinserting battery) may be needed by a technician. |
| Water inside the watch. | Water resistance seal compromised. | Immediately take the watch to a qualified watch repair center. Do not attempt to dry it yourself. |
| Time is incorrect. | Time needs to be reset or battery is low. | Follow the "Setting Time and Date" instructions in the Setup section. If issue persists, consider battery replacement. |
Specifications
- Model Number: TW5M636009J
- Case Diameter: 43mm
- Band Length: 8 inches
- Dial Type: Digital
- Lens Material: Acrylic
- Water Resistance: Up to 50 meters (164 feet)
- Battery Type: 1 Lithium Metal battery (CR2025 CELL)
- Weight: 3.17 ounces
- Manufacturer: Timex
- Country of Origin: Philippines
Warranty and Support
Specific warranty details for your Timex watch are typically provided with the product packaging or can be found on the official Timex website. Please retain your proof of purchase for warranty claims.
For technical support, service, or further inquiries, please visit the official Timex website or contact their customer service department. Contact information can usually be found on the Timex website or in the original product documentation.
You can visit the Timex Store for more information: Timex Official Store