Armitron 45/7099BLK
Armitron Sport Digital Watch User Manual
Model: 45/7099BLK
Introduction
Thank you for choosing the Armitron Sport Digital Chronograph Watch, Model 45/7099BLK. This watch features a durable black resin case and strap, a clear LCD display, and multiple functions designed for active lifestyles. This manual provides detailed instructions on how to set up, operate, and maintain your watch to ensure optimal performance and longevity.

Figure 1: Front view of the Armitron Sport Digital Chronograph Watch.
Setup
Initial Setup: Setting Time and Date
Your Armitron Sport watch comes with a pre-installed lithium metal battery. Follow these steps to set the correct time and date:
- Identify Buttons: Locate the buttons on the sides of your watch. Typically, these are labeled "MODE", "RESET", "ST/STP", and "EL" (for Electroluminescent backlight).
- Enter Time Setting Mode: Press the MODE button repeatedly until the time setting mode is displayed. Usually, the seconds will start flashing.
- Adjust Seconds: Press the RESET button to reset the seconds to zero.
- Navigate to Hours: Press the ST/STP button to move the flashing cursor to the hours digit.
- Adjust Hours: Use the RESET button to adjust the hour. Pay attention to AM/PM indicators if your watch uses a 12-hour format.
- Navigate to Minutes: Press the ST/STP button to move to the minutes digit.
- Adjust Minutes: Use the RESET button to adjust the minutes.
- Set Date (Year, Month, Day): Continue pressing the ST/STP button to cycle through setting the year, month, and day. Use the RESET button to adjust each value.
- Exit Setting Mode: Once all settings are correct, press the MODE button to return to the normal time display.
Note: Specific button functions may vary slightly. Refer to the on-screen indicators for guidance.
Operating Instructions
Your Armitron Sport watch offers several useful functions. Navigate between modes using the MODE button.
Chronograph (Stopwatch) Function
The chronograph allows you to measure elapsed time.
- Press MODE until "CHRONO" or "STW" appears on the display.
- Press ST/STP to start the stopwatch.
- Press ST/STP again to pause the stopwatch.
- Press RESET to reset the stopwatch to zero.
Lap Time Function
While the chronograph is running, you can record lap times.
- Start the chronograph as described above.
- Press RESET while the chronograph is running to display the lap time. The chronograph continues to run in the background.
- Press RESET again to return to the running chronograph display.
Alarm Function
Set an alarm to sound at a specific time.
- Press MODE until "ALARM" or "AL" appears.
- Press RESET to toggle the alarm on/off or to enter setting mode (if applicable).
- If setting, use ST/STP to select hours/minutes and RESET to adjust.
- Press MODE to exit.
Dual Time (Second Time Zone)
Display a second time zone.
- Press MODE until "DUAL TIME" or "DT" appears.
- Enter setting mode (if needed, usually by holding RESET).
- Use ST/STP to select hours/minutes and RESET to adjust.
- Press MODE to exit.
Military Time (24-Hour Format)
Toggle between 12-hour and 24-hour (military) time format.
- In normal time display mode, press the ST/STP button to switch between 12-hour (AM/PM) and 24-hour formats.
Backlight (EL)
Illuminate the display in low-light conditions.
- Press the EL button (usually located on the top right or left side) to activate the electroluminescent backlight. The light will stay on for a few seconds.
Maintenance
Cleaning Your Watch
To keep your watch looking its best, wipe it regularly with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials, as these can damage the resin case and strap.
Water Resistance
This watch is water resistant to 100 meters (330 feet). This means it is generally suitable for swimming and snorkeling. However, it is not suitable for scuba diving. Avoid pressing buttons underwater, as this can compromise the water resistance seal.

Figure 2: Water Resistance Chart, illustrating suitable activities for different water resistance ratings. This watch is rated for 100m (330ft), making it suitable for swimming and snorkeling.
Important: Exposure to hot water (e.g., hot tubs, showers) can damage the watch's seals and is not recommended, even for water-resistant watches.
Battery Replacement
The watch uses 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 the water resistance seal is properly re-installed.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Low battery. | Replace the battery. |
| Time is incorrect. | Time not set correctly or accidental button press. | Refer to the "Setting Time and Date" section to reset the time. |
| Buttons are unresponsive. | Watch may be in a locked mode or internal issue. | Try pressing all buttons to see if any respond. If not, a battery reset (removal and re-insertion) by a professional may be needed. |
| Condensation inside the watch face. | Compromised water resistance due to impact, age, or extreme temperature changes. | Stop using the watch immediately and take it to a qualified watch repair service. |
Specifications
- Model Number: 45/7099BLK
- Movement: Quartz Digital
- Case Material: Resin
- Case Diameter: 40mm
- Strap Material: Textured Resin
- Display: LCD Multifunctional
- Functions: Chronograph, Lap Time, Alarm, Dual Time, Military Time, Backlight
- Water Resistance: 100m (330ft) - Suitable for swimming and snorkeling, not diving.
- Battery: 1 Lithium Metal battery (included)
- Approximate Weight: 1 ounce
- Package Dimensions: 3.94 x 3.5 x 2.8 inches
Warranty and Support
For warranty information and customer 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.
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