Introduction
This manual provides detailed instructions for the proper use and care of your Timex Men's Watch, Model TW2U39100. Please read this manual thoroughly to ensure optimal performance and longevity of your timepiece.

Image 1: Front view of the Timex TW2U39100 watch. This image displays the watch face with its black dial, three subdials, gold-tone hour markers, and hands. The watch features a round brass case with gold-tone pushers and crown, and is fitted with a black leather band with white stitching.
Setup
1. Initial Time Setting
- Pull out the crown: Gently pull the crown (the knob on the side of the watch) to its outermost position.
- Set the time: Rotate the crown clockwise or counter-clockwise to move the hour and minute hands to the correct time.
- Push in the crown: Once the time is set, push the crown back into its original position to start the watch movement.
2. Date Setting (if applicable)
If your watch features a date display, it can typically be set by pulling the crown to an intermediate position and rotating it. Refer to the specific movement instructions if available, or consult the Timex website for detailed model-specific instructions.

Image 2: Side view of the watch, highlighting the crown and pushers. This image shows the gold-tone crown and two pushers on the right side of the watch case, which are used for setting the time and operating chronograph functions.
Operating the Watch
Basic Timekeeping
Your Timex TW2U39100 watch is designed for accurate timekeeping. The main hands display hours, minutes, and seconds. The watch features a chronograph function, indicated by the three subdials on the main face.
Chronograph Function
The chronograph allows you to measure elapsed time. The specific operation may vary slightly by movement, but generally:
- Start: Press the top pusher to start the chronograph. The chronograph second hand will begin to move.
- Stop: Press the top pusher again to stop the chronograph. The elapsed time will be indicated by the chronograph hands on the subdials.
- Reset: Press the bottom pusher to reset the chronograph hands to zero. This can only be done when the chronograph is stopped.
Note: Continuous use of the chronograph can consume more battery power. It is recommended to reset the chronograph when not in use.
Maintenance and Care
- Cleaning: Wipe the watch case and strap regularly with a soft, dry cloth. For the leather strap, avoid excessive moisture.
- Water Resistance: This watch has a water resistance rating (e.g., WR 50M). This typically means it is suitable for short periods of recreational swimming, but not for diving or prolonged submersion. Avoid operating the crown or pushers when the watch is wet.
- Temperature: Avoid exposing the watch to extreme temperatures (hot or cold) or sudden temperature changes.
- Chemicals: Keep the watch away from solvents, detergents, perfumes, and cosmetics, as these can damage the case, strap, or seals.
- Battery Replacement: When the watch stops or the second hand begins to jump erratically (indicating low battery), have the battery replaced by a qualified watch technician to ensure proper sealing and water resistance.
- Strap Care: The black leather strap is durable but can be affected by sweat, water, and direct sunlight. Clean it gently and allow it to air dry if it gets wet.

Image 3: Rear view of the watch, displaying the engraved case back and the leather strap. The case back features engravings such as "WR 50M" (Water Resistance 50 Meters), "Stainless Steel," and "TIMEX" branding, along with design details. The black leather strap with white stitching is also visible.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Watch stops or runs intermittently. | Low battery. | Replace the battery. |
| Hands do not move after setting. | Crown not pushed in completely. | Ensure the crown is fully pushed into its normal operating position. |
| Chronograph hands do not reset to zero. | Chronograph was not stopped before resetting. | Stop the chronograph first by pressing the top pusher, then press the bottom pusher to reset. If issues persist, a service may be required. |
| Moisture under the crystal. | Water resistance compromised. | Immediately take the watch to a qualified service center to prevent further damage. Avoid extreme temperature changes. |
Specifications
- Model Number: TW2U39100
- Brand: Timex
- Case Material: Brass
- Case Diameter: 45 mm
- Case Thickness: 11 mm
- Dial Color: Black
- Band Material: Leather
- Band Width: 20 mm
- Water Resistance: 50 meters (WR 50M)
- Movement: Quartz
- Features: Chronograph, Date (if applicable)
Warranty and Support
Your Timex watch is covered by a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your purchase or visit the official Timex website. Keep your proof of purchase for warranty claims.
For technical support, service, or to find an authorized service center, please visit the official Timex support page or contact their customer service directly. Contact information can typically be found on the Timex website.
Please note that unauthorized repairs or modifications may void your warranty.





