Product Overview
The Timex Expedition Digital Chrono Alarm Timer is a robust digital watch designed for outdoor use, featuring a chronograph, alarm, and timer functions. Its durable construction is built to withstand daily wear.

Image: Front view of the Timex Expedition Digital Chrono Alarm Timer watch, showcasing its digital display and Mossy Oak Break-Up Country Camo strap.
Setup
Before initial use, ensure the watch is properly set to your local time and date. Refer to the detailed instructions below for setting various functions.
Setting Time and Date
- Press the SET button (typically on the top left) to enter setting mode.
- Use the MODE button (bottom left) to cycle through setting options (e.g., hours, minutes, year, month, day).
- Use the START/RESET button (top right) to adjust the flashing value.
- Once all settings are correct, press SET again to exit setting mode.
Adjusting the Strap
The adjustable camo fabric strap with genuine leather trim is designed to fit wrist circumferences up to 7.5 inches. Adjust the buckle to achieve a comfortable and secure fit on your wrist.
Operating Instructions
This watch offers multiple functions accessible via its buttons. Familiarize yourself with the button layout and their respective operations.
Chronograph (Stopwatch)
- Press MODE until "CHRONO" or stopwatch icon appears.
- Press START/RESET to begin timing.
- Press START/RESET again to pause/resume.
- To record lap/split times, press SET while the chronograph is running.
- To reset, press START/RESET to stop, then press SET.
Countdown Timer
- Press MODE until "TIMER" or countdown icon appears.
- Use SET and START/RESET to set the desired countdown duration (up to 24 hours).
- Press START/RESET to begin the countdown.
- An audible alert will sound when the timer reaches zero.
Alarms
- The watch supports 3 daily, weekday, or weekend alarms with a 5-minute backup snooze feature.
- Press MODE until "ALARM" or alarm icon appears.
- Use SET to select an alarm (AL1, AL2, AL3) and adjust its time.
- Use START/RESET to toggle the alarm on/off or set its mode (daily, weekday, weekend).
Indiglo® Night-Light
Press the INDIGLO button (usually the main button on the front or a dedicated button) to illuminate the watch dial for visibility in low-light conditions.
Military Time Mode (24-Hour) & Dual Time Zones
The watch supports a 24-hour military time display mode and allows for setting two independent time zones (T1 and T2) for convenience when traveling.
Maintenance
Water Resistance
This watch is water-resistant to 100 meters (330 feet). This rating makes it suitable for snorkeling and swimming. It is not suitable for diving. Avoid pressing buttons underwater to prevent water ingress.
Battery Replacement
The watch requires 1 Lithium Metal battery (included). When the display dims or functions become erratic, it may be time to replace the battery. It is recommended to have battery replacement performed by a qualified watch technician to ensure proper sealing and water resistance.
Cleaning
Clean the watch case and strap with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials, which can damage the finish or strap.
Troubleshooting
- Display is blank or dim: The battery may be low or depleted. Replace the battery.
- Buttons are unresponsive: Ensure the watch is not in a locked mode (if applicable). If not, a reset may be required (refer to the full user manual).
- Time is inaccurate: Re-set the time according to the "Setting Time and Date" section. If the issue persists, the battery may be weak.
- Water inside the watch: Immediately take the watch to a qualified service center. Do not attempt to open it yourself.
Specifications
| Feature | Detail |
|---|---|
| Model Number | TW4B19800JT |
| Case Diameter | 33mm |
| Case Material | Resin with Acrylic Lens |
| Strap Material | Fabric with Genuine Leather Trim |
| Water Resistance | 100m (330 ft) |
| Battery Type | 1 Lithium Metal (included) |
| Package Dimensions | 4.25 x 3.27 x 3.03 inches |
| Item Weight | 0.96 ounces |
| Department | Unisex-Adult |
Warranty and Support
For detailed warranty information and comprehensive support, please refer to the official Timex website or the full user manual provided by the manufacturer.
A complete user manual in PDF format can be accessed via the following link:
Download Full User Manual (PDF)
For further assistance, contact Timex customer service through their official channels.





