1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Timex DGTL Sport Watch, model TW5M423009J. Please read this manual carefully to ensure proper use and to maximize the lifespan of your watch.
Key features of your Timex DGTL Sport Watch include:
- Digital time display with day, date, and month calendar
- 24-hour chronograph with 1/100-second resolution
- Daily alarm function
- Two time zones
- 24-hour military time mode
- Indiglo light-up watch dial for low-light conditions
- Water resistance up to 50 meters (165 feet)
2. Watch Components
Familiarize yourself with the buttons and display of your Timex DGTL Sport Watch.

Figure 1: Front view of the Timex DGTL Sport Watch. This image displays the digital screen, showing the time, day, and date. The watch features four buttons: 'RESET' (top left), 'ST/STP' (top right), 'MODE' (bottom left), and 'INDIGLO' (bottom right).

Figure 2: Side view of the Timex DGTL Sport Watch. This image highlights the watch's profile and the two buttons located on the right side of the watch case, which are 'ST/STP' and 'INDIGLO'.

Figure 3: Back view of the Timex DGTL Sport Watch. This image shows the stainless steel case back, which includes water resistance markings, and the attachment points for the pink resin strap.
- RESET Button: Used for resetting functions and navigating settings.
- ST/STP Button: Used for starting/stopping functions and adjusting values.
- MODE Button: Used to cycle through different watch modes (Time, Chronograph, Alarm, Dual Time).
- INDIGLO Button: Activates the Indiglo night-light.
3. Setup
3.1 Setting Time and Date
- From the normal time display, press and hold the RESET button for approximately 3-4 seconds. The day of the week will disappear, and the seconds will begin flashing, indicating you are in setting mode.
- Press the MODE button. The hour digit will flash.
- Use the ST/STP button to adjust the hour. Press repeatedly to advance the hour. Note the AM/PM indicator for 12-hour format.
- Press the MODE button again. The minute digits will flash.
- Use the ST/STP button to adjust the minutes.
- Continue pressing the MODE button to cycle through and set the year, month, and day of the month, adjusting each with the ST/STP button.
- Once all settings are correct, press the RESET button to confirm and exit the setting mode.
- To switch between 12-hour and 24-hour (military) time format, adjust this option during the time setting process when the hour is flashing.
3.2 Setting the Daily Alarm
- From the normal time display, press the MODE button until the alarm display appears (indicated by an alarm icon).
- Press and hold the RESET button until the alarm hour flashes.
- Use the ST/STP button to set the desired alarm hour.
- Press the MODE button to select the minutes, then use the ST/STP button to set the desired alarm minutes.
- Press the RESET button to confirm the alarm time.
- To activate or deactivate the alarm, press the ST/STP button while in the alarm display mode. An alarm icon will appear or disappear to indicate its status.
4. Operating Functions
4.1 Using the Chronograph (Stopwatch)
- Press the MODE button until the chronograph display appears.
- Press the ST/STP button to start the chronograph.
- Press the ST/STP button again to stop the chronograph.
- Press the RESET button to reset the chronograph to zero.
4.2 Activating Indiglo Night-Light
Press the INDIGLO button (often labeled 'SOM' on the watch face) to illuminate the watch display for a few seconds, providing visibility in low-light conditions.
4.3 Dual Time Zones
Your watch supports two time zones. To set and view the second time zone:
- Press the MODE button until the dual time display appears (often indicated by 'T2' or similar).
- Press and hold the RESET button until the hour flashes.
- Use the ST/STP button to adjust the hour, then press MODE to select minutes and adjust with ST/STP.
- Press RESET to confirm the second time zone setting.
5. Maintenance
5.1 Water Resistance
Your Timex DGTL Sport Watch is water resistant to 50 meters (165 feet). This means it is suitable for short periods of recreational swimming, showering, or washing hands. It is not suitable for diving, snorkeling, or high-impact water sports. Do not press any buttons while the watch is submerged in water.
5.2 Battery Replacement
The watch is powered by one Lithium Metal battery (included). When the display dims or functions become erratic, it may be time to replace the battery. Battery replacement should ideally be performed by a qualified watch technician to ensure proper sealing and maintain water resistance.
5.3 Care and Cleaning
To clean your watch, wipe it with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials, as these can damage the watch case or strap. Store your watch in a cool, dry place when not in use.
6. Troubleshooting
- Watch display is blank or dim: The battery may need replacement. See Section 5.2.
- Buttons are unresponsive: Ensure the watch is not in a locked mode (if applicable) or that it is not submerged in water. If issues persist, a battery replacement might be necessary.
- Time is incorrect: Refer to Section 3.1 for instructions on how to set the time and date.
For further assistance, please refer to the official Timex support resources.
7. Specifications
| Model Number | TW5M423009J |
| Brand | TIMEX |
| Case Diameter | 40 Millimetres |
| Case Thickness | 13 Millimetres |
| Band Material Type | Plastic (Resin) |
| Band Colour | Pink |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 50 Meters (165 Feet) |
| Item Weight | 36.3 Grams |
| Batteries | 1 Lithium Metal battery (included) |
8. Warranty and Support
Your Timex DGTL Sport Watch is covered by a manufacturer's warranty. Please refer to the warranty card included with your purchase for specific terms and conditions, including warranty duration and coverage details.
For technical support, service, or warranty claims, please visit the official Timex website or contact Timex customer service directly. Contact information can typically be found on the Timex website or on your warranty documentation.





