Introduction
The Timex Expedition Base Shock Watch T49977 is engineered for durability and functionality, featuring a robust design that is shock-resistant and water-resistant up to 100 meters. This manual provides detailed instructions to help you understand and utilize all the features of your watch, ensuring reliable performance in various environments.

Front view of the Timex Expedition Base Shock Watch T49977, showing the digital display and button labels.
Setup
Button Functions
- SET: Used to enter and exit setting modes, and to confirm selections.
- MODE: Cycles through different watch modes (Time, Alarm, Chronograph, Timer).
- START/SPLIT: Starts/stops functions, or advances values during setting.
- STOP/RESET: Stops functions, resets values, or decreases values during setting.
- INDIGLO: Activates the night-light for illumination.
Setting Time and Date
- In Time mode, press and hold the SET button until the display flashes.
- Use START/SPLIT or STOP/RESET to adjust the flashing value (e.g., seconds, minutes, hours).
- Press MODE to move to the next setting (e.g., 12/24 hour format, month, day, year).
- Repeat step 2 to adjust each value.
- Press SET to exit the setting mode.
Operating Instructions
Using the Indiglo Night-Light
Press the INDIGLO button (typically located on the top left side of the watch) to illuminate the watch face for approximately 3 seconds. This feature is useful in low-light conditions.
Alarm Function
- Press MODE until 'ALM' (Alarm) appears on the display.
- Press and hold SET until the alarm time flashes.
- Use START/SPLIT or STOP/RESET to adjust the hour and minute.
- Press MODE to toggle between AM/PM (if in 12-hour format).
- Press SET to save the alarm time.
- To activate/deactivate the alarm, press START/SPLIT while in Alarm mode. An alarm icon will appear when active.
Chronograph (Stopwatch)
- Press MODE until 'CHR' (Chronograph) appears.
- Press START/SPLIT to begin timing.
- Press START/SPLIT again to pause the chronograph.
- Press STOP/RESET to reset the chronograph to zero.
- To record split times, press START/SPLIT during timing. The display will show the split time while the chronograph continues to run in the background. Press START/SPLIT again to return to the running time.
Timer Function
- Press MODE until 'TMR' (Timer) appears.
- Press and hold SET to set the desired countdown time.
- Use START/SPLIT or STOP/RESET to adjust hours, minutes, and seconds.
- Press SET to save the timer setting.
- Press START/SPLIT to start the countdown.
- Press START/SPLIT again to pause, and STOP/RESET to reset.
Maintenance
Cleaning Your Watch
Regularly clean your watch with a soft, damp cloth. For stubborn dirt, a mild soap solution can be used, followed by rinsing with clean water. Ensure all buttons are pressed in when cleaning to maintain water resistance. Avoid harsh chemicals or abrasive materials.
Water Resistance
The Timex Expedition Base Shock Watch is water-resistant to 100 meters (330 feet). This rating means it is suitable for showering, swimming, and snorkeling. Do not press any buttons while the watch is submerged or wet, as this can compromise the water seal. Avoid exposing the watch to extreme temperature changes, which can also affect water resistance.

Side view of the watch, highlighting its robust case design.
Battery Replacement
The watch uses one Lithium Metal battery (CR2016). 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 the water resistance seal is properly re-installed.

Close-up of the watch's stainless steel back, indicating water resistance and battery type.
Troubleshooting
- Display is blank or dim: The battery may need replacement. See 'Battery Replacement' section.
- Buttons are unresponsive: Ensure the watch is not in a locked mode (if applicable, consult full Timex manual for specific model lock features). If issues persist, a soft reset by removing and reinserting the battery (by a professional) might be necessary.
- Water inside the watch: Immediately take the watch to a qualified service center. Do not attempt to dry it yourself, as this can cause further damage.
- Incorrect time/date: Re-enter the time and date settings as described in the 'Setting Time and Date' section.
Specifications
| Model Number | T49977 |
| Brand | Timex |
| Water Resistance | 100 meters (330 feet) |
| Shock Resistance | Yes (to ISO standards) |
| Battery Type | CR2016 Lithium Metal |
| Case Material | Resin |
| Strap Material | Rubber |
| Dimensions (Product) | 0.99 x 0.99 x 0.99 cm |
| Weight | 54.43 g |
| Features | Indiglo Night-Light, Digital Display, Alarm, Chronograph, Timer |
Warranty and Support
For warranty information, service, or additional support, please refer to the official Timex website or contact Timex customer service directly. Keep your proof of purchase for any warranty claims. Do not attempt to open or repair the watch yourself, as this may void the warranty and compromise its water resistance.
Official Timex Website: www.timex.com





