Introduction
Thank you for choosing the Armitron Sport Digital Chronograph Watch, Model 45-7102. This manual provides essential instructions for the proper setup, operation, and maintenance of your watch. Please read this manual thoroughly to ensure optimal performance and longevity of your timepiece.
Product Overview
The Armitron Sport Digital Chronograph Watch features a durable resin case and strap, designed for active lifestyles. Its digital display provides clear visibility of time, date, and various functions.

Figure 1: Front view of the Armitron Sport Digital Chronograph Watch, Model 45-7102, displaying the time, day, and date on its digital screen. The watch features a black resin case and strap with a silver-tone top ring.

Figure 2: Side profile of the Armitron Sport Digital Chronograph Watch, Model 45-7102, showing the watch's thickness and the placement of its control buttons on the side of the case.

Figure 3: Rear view of the Armitron Sport Digital Chronograph Watch, Model 45-7102, detailing the stainless steel case back and the secure buckle mechanism of the black resin strap.

Figure 4: The Armitron Sport Digital Chronograph Watch, Model 45-7102, displayed on a wrist, illustrating its compact size and comfortable fit for daily wear.
Features
- Matte black resin case with a stainless steel top ring.
- Clear LCD display showing time, seconds, day, and date.
- Integrated functions: chronograph, dual time, alarm, and backlight.
- Comfortable matte black resin strap with a secure buckle closure.
- Water resistant up to 330 feet (100 meters).
- Designed for exercise and fitness activities.
Button Functions
Your watch is equipped with four buttons to navigate its various functions:
- MODE: Cycles through different display modes (Time, Chronograph, Alarm, Dual Time).
- RESET: Used to reset the chronograph or adjust settings in setting modes.
- ST/STP (Start/Stop): Initiates or pauses the chronograph, or advances settings.
- EL (Electroluminescent): Activates the backlight for improved visibility in low light conditions.
Setup: Setting Time and Date
- In Time Mode, press and hold the RESET button until the seconds begin to flash. This indicates you are in setting mode.
- Press the MODE button to cycle through the settings: seconds, hours, minutes, year, month, and day.
- Use the ST/STP button to adjust the flashing value.
- Once all settings are correct, press the RESET button again to exit the setting mode.
Note: For detailed instructions on 12/24-hour format selection or specific date formats, please refer to the comprehensive manual provided with your watch.
Operating Modes
Chronograph (Stopwatch)
- Press the MODE button repeatedly until "CHRONO" or a similar indicator appears on the display.
- Press ST/STP to start the stopwatch.
- Press ST/STP again to pause the stopwatch.
- Press RESET to clear the stopwatch to zero.
Alarm Function
- Press the MODE button until "ALARM" is displayed.
- Press and hold RESET to enter alarm setting mode. The hour digits will flash.
- Use ST/STP to adjust the hour, then press MODE to select minutes and adjust with ST/STP.
- Press RESET to confirm and exit.
- To activate/deactivate the alarm, press ST/STP in Alarm Mode. An alarm icon will appear/disappear.
Dual Time
- Press the MODE button until "DUAL TIME" or "DT" is displayed.
- Press and hold RESET to enter dual time setting mode.
- Use ST/STP to adjust the hours and minutes, cycling with the MODE button.
- Press RESET to confirm and exit.
Backlight
Press the EL button at any time to illuminate the watch display for a few seconds, enhancing visibility in dark environments.
Water Resistance
This Armitron Sport watch is water resistant to 330 feet (100 meters). This rating means the watch is suitable for swimming and snorkeling, but it is not designed for scuba diving. Avoid pressing buttons while the watch is submerged to prevent water ingress.

Figure 5: Water Resistance Chart. This chart illustrates various water resistance ratings for watches. For this model, 100M (330FT) indicates suitability for swimming and snorkeling, but not scuba diving.
Maintenance
- Cleaning: Wipe the watch regularly with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners.
- Storage: When not in use, store your watch in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Replacement: When the display dims or functions become erratic, the battery may need replacement. It is recommended to have this done by a qualified watch technician to ensure water resistance is maintained.
- Avoid Impacts: While durable, avoid dropping the watch or subjecting it to strong impacts.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Low or dead battery. | Replace the battery. Consult a professional watch technician. |
| Time is incorrect. | Time needs to be reset. | Follow the "Setting Time and Date" instructions. |
| Buttons are unresponsive. | Watch may be in a locked mode or require a reset. | Try pressing all buttons to see if any respond. If not, a battery reset may be needed by a technician. |
| Water inside the display. | Water resistance compromised. | Immediately take the watch to a qualified technician for inspection and repair to prevent further damage. |
Specifications
- Model Number: 45/7102
- Movement: Quartz
- Case Material: Resin with Stainless Steel Top Ring
- Strap Material: Resin
- Display Type: Digital LCD
- Functions: Time, Seconds, Day, Date, Chronograph, Dual Time, Alarm, Backlight
- Water Resistance: 100 meters (330 feet)
- Battery: 1 Product Specific battery (included)
- Approximate Dimensions: 3.98 x 3.5 x 2.76 inches (Package)
- Approximate Weight: 3.84 ounces (Package)
Warranty and Support
For warranty information, service, or technical support, please refer to the warranty card included with your purchase or visit the official Armitron website. Keep your proof of purchase for any warranty claims.
Armitron Customer Service: For assistance, please contact Armitron directly through their official support channels.





