1. Product Overview
The Timex Expedition CAT 33mm Digital Watch is designed for durability and functionality, suitable for various activities. It features a digital display, Indiglo night-light, and is water-resistant up to 100 meters. The watch is equipped with a robust black strap and a 33mm black case, making it a reliable timepiece for everyday use.

Image 1: Front view of the Timex Expedition CAT 33mm Digital Watch, showcasing its digital display and black strap.
2. Initial Setup
Setting Time and Date
To ensure accurate timekeeping, follow these steps to set the time and date on your Timex Expedition watch. The watch features four primary buttons: MODE, SET, START/SPLIT, and STOP/RESET.
- Enter Set Mode: Press and hold the SET button until the display flashes, indicating you are in set mode.
- Select Item: Press the MODE button to cycle through the settings (hours, minutes, seconds, month, day, year).
- Adjust Value: Use the START/SPLIT button to increase the flashing value or the STOP/RESET button to decrease it.
- Confirm and Exit: Once all settings are correct, press the SET button again to exit set mode and save your changes.

Image 2: Side view of the watch, highlighting the control buttons used for setting and operating functions.
3. Operating Your Watch
Indiglo Night-Light
The Indiglo night-light illuminates the watch display for easy viewing in low-light conditions. To activate, simply press the INDIGLO button (typically located on the top right or left side of the watch case). The light will remain on for a few seconds.
Stopwatch Function
Your watch includes a stopwatch feature for timing events.
- Access Stopwatch: Press the MODE button repeatedly until the stopwatch display appears.
- Start/Stop: Press the START/SPLIT button to begin timing. Press it again to pause.
- Split Time: While the stopwatch is running, press the STOP/RESET button to record a split time without stopping the main timer. Press START/SPLIT to resume.
- Reset: With the stopwatch paused, press the STOP/RESET button to clear the timer to zero.
Water Resistance
This watch is water-resistant up to 100 meters (330 feet). This means it is suitable for showering, swimming, and snorkeling. It is not recommended for scuba diving. Do not operate buttons underwater to maintain water resistance integrity.
4. Care and Maintenance
- Cleaning: Clean your watch regularly with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners.
- Battery Replacement: The watch uses 1 Lithium Metal battery (CR2016 cell). When the display dims or functions become erratic, it's time to replace the battery. It is recommended to have battery replacement performed by a qualified technician to ensure water resistance is maintained.
- Temperature: Avoid exposing your watch to extreme temperatures, both hot and cold, as this can affect battery life and watch performance.
- Impact: While durable, avoid dropping the watch or subjecting it to strong impacts.

Image 3: Close-up of the watch's stainless steel back, indicating the CR2016 cell battery type and 100-meter water resistance.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Low or dead battery. | Replace the battery (CR2016 cell). |
| Time is incorrect. | Time needs to be reset. | Follow the "Setting Time and Date" instructions in Section 2. |
| Buttons are unresponsive. | Temporary software glitch or low battery. | Try resetting the watch (if applicable, refer to full manual) or replace battery. |
| Condensation under crystal. | Exposure to extreme temperature changes or compromised water resistance. | Seek professional service immediately to prevent damage. Avoid further water exposure. |
6. Specifications
- Model Number: TW4B280009J
- Case Diameter: 33mm
- Strap Material: Black fabric
- Lens Material: Acrylic
- Water Resistance: Up to 100 meters (330 feet)
- Battery Type: 1 Lithium Metal battery (CR2016 cell)
- Department: Unisex
- Features: Digital display, Indiglo night-light, Stopwatch, Alarm, Date
7. Warranty and Support
Your Timex watch is covered by a limited warranty against manufacturing defects. For specific warranty terms, registration, or to obtain service, please visit the official Timex website or contact Timex customer support directly. Keep your proof of purchase for warranty claims.
For additional support, frequently asked questions, or to download a full version of the manual, please visit the Timex Official Website.







