Introduction
Thank you for purchasing the Timex Expedition Pioneer Combo 41mm watch. This manual provides detailed instructions for the setup, operation, and maintenance of your new timepiece. Please read this manual carefully to ensure proper use and to maximize the life of your watch.

Image: The Timex Expedition Pioneer Combo watch displayed on a wrist, highlighting its analog dial with partial Arabic numerals and the digital display at the 6 o'clock position.
Setup
Unboxing
Your watch comes securely packaged. Carefully remove the watch from its packaging. Inspect the watch for any visible damage before proceeding.

Image: The gray Timex branded packaging box, as typically received with the watch.
Strap Adjustment
The watch features an adjustable green 20mm silicone quick-release strap designed to fit wrist circumferences up to 8 inches. To adjust, simply use the buckle mechanism to find a comfortable fit. The quick-release pins allow for easy strap removal and replacement if desired.

Image: A detailed view of the watch's green silicone strap, showing the buckle and quick-release mechanism.
Initial Time Setting
Before using your watch, ensure both the analog and digital times are set correctly.
Operating Instructions

Image: Side profile of the watch, illustrating the main crown and the two pushers used for various functions.
Analog Time Setting
- Pull the crown (center knob) out to the furthest position.
- Turn the crown to move the hour and minute hands to the desired time.
- Push the crown back in to start the analog timekeeping.
Digital Display Functions
The watch features a gray digital display at the 6 o'clock position, offering Chronograph, Alarm, and Timer functions. Refer to the specific buttons (pushers) on the side of the watch for digital function control.
Setting Digital Time and Date
- Press the MODE button (usually bottom-left pusher) repeatedly until the digital time display flashes.
- Use the SET/ADJUST button (usually top-left pusher) to select the digit to be adjusted (e.g., hours, minutes, year, month, day).
- Use the START/STOP button (usually top-right pusher) to increase the value.
- Press MODE again to confirm and exit setting mode.
Chronograph (Stopwatch)
- Press the MODE button until 'CHR' or 'STP' appears on the digital display.
- Press the START/STOP button to begin timing.
- Press START/STOP again to pause/resume.
- Press the RESET button (usually bottom-right pusher) to clear the time.
Alarm
- Press the MODE button until 'ALM' appears.
- Press SET/ADJUST to enter alarm setting mode.
- Use START/STOP to adjust the alarm time.
- Press SET/ADJUST to move between hours and minutes.
- Press MODE to confirm and activate the alarm.
Timer
- Press the MODE button until 'TMR' appears.
- Press SET/ADJUST to enter timer setting mode.
- Use START/STOP to set the countdown time.
- Press SET/ADJUST to move between hours, minutes, and seconds.
- Press START/STOP to begin the countdown.
- The alarm will sound when the timer reaches zero.
Indiglo Night-Light
The watch features an Indiglo luminous dial for illumination in low-light conditions. Press the crown (center knob) briefly to activate the Indiglo night-light. The light will remain on for a few seconds.
Water Resistance
This watch is water resistant to 50 meters (165 feet). This rating means it is generally suitable for short periods of recreational swimming. However, it is not suitable for diving or snorkeling. Avoid pressing any buttons or operating the crown while the watch is wet or submerged to prevent water intrusion.
Maintenance
Cleaning Your Watch
To clean your watch, wipe the case and strap with a soft, damp cloth. For silicone straps, mild soap and water can be used. Ensure the watch is completely dry before wearing. Avoid using harsh chemicals or abrasive materials, as these can damage the watch's finish.
Battery Replacement
The watch is powered by one lithium metal battery. When the watch stops or the Indiglo light dims significantly, the battery may need replacement. Battery replacement should ideally be performed by a qualified watch technician to ensure proper sealing and maintain water resistance.
Water Resistance Care
To maintain the water resistance of your watch, ensure the crown is always pushed in completely. Avoid exposing the watch to extreme temperature changes, such as moving from a hot sauna to cold water, as this can affect the seals. Have the water resistance seals checked periodically by a professional, especially after battery replacement.
Troubleshooting
- Watch not running or digital display blank: The battery may be depleted. Replace the battery.
- Analog hands not moving: Check if the crown is pushed in completely. If it is, the battery may be low or the movement may require service.
- Digital display showing incorrect time: Refer to the 'Setting Digital Time and Date' section to reset the digital time.
- Water inside the watch: Immediately take the watch to a qualified service center. Do not attempt to open the watch yourself, as this will void the warranty and likely cause further damage.
Specifications
- Model Number: TW4B17100JT
- Case Diameter: 41mm
- Case Material: Brass
- Crystal Material: Mineral Glass
- Strap Material: Silicone (Green, 20mm quick-release)
- Water Resistance: 50 meters (165 feet)
- Movement: Analog and Digital Quartz
- Illumination: Indiglo Night-Light
- Functions: Analog Time, Digital Time, Chronograph, Alarm, Timer
- Battery: 1 Lithium Metal battery (included)
- Approximate Package Dimensions: 10.92 x 8.38 x 8.13 cm
- Approximate Item Weight: 36.29 g
- Manufacturer: Timex Corporation
Warranty and Support
Your Timex watch is covered by a manufacturer's warranty. For specific warranty details, registration, or to find authorized service centers, 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 further assistance or inquiries, please contact Timex customer support through their official channels.