Armitron 20/5372BYLTB
Armitron Men's Analog-Digital Chronograph Sport Watch User Manual
Model: 20/5372BYLTB
Brand: Armitron
Introduction
This user manual provides comprehensive instructions for the Armitron Men's Analog-Digital Chronograph Sport Watch, Model 20/5372BYLTB. Please read this manual carefully to understand the functions and proper operation of your watch. This watch features a Japanese Quartz Movement, ensuring accurate timekeeping.
Product Features
- Case Design: Black resin case with a gray top ring.
- Display: Analog-digital display showing time, seconds, day, and date.
- Functions: Includes chronograph, three independent alarms, hourly chime, military time display, dual time zone capability, and a backlight for low-light conditions.
- Strap: Durable yellow resin strap with a secure buckle closure.
- Water Resistance: Water resistant up to 330 feet (100 meters).

Image: Front view of the Armitron Analog-Digital Sport Watch, highlighting the yellow resin strap, black resin case, and the analog-digital display.
Setup
Setting Time and Date (Analog)
- Pull Crown: Gently pull the crown (located on the right side of the watch) out to position 1.
- Adjust Time: Rotate the crown clockwise or counter-clockwise to set the analog hour and minute hands to the desired time.
- Push Crown: Push the crown back in to position 0 to start the analog movement.
Setting Time and Date (Digital)
- Enter Setting Mode: Press the 'MODE' button repeatedly until the digital time display starts flashing.
- Select Item: Press the 'SET' button to cycle through the flashing items (seconds, hour, minute, year, month, day).
- Adjust Value: Use the 'ADJ' button to increase the value of the flashing item. Hold 'ADJ' for faster adjustment.
- Exit Setting Mode: Press the 'MODE' button to save settings and return to normal time display.

Image: Side view of the watch, illustrating the crown and function buttons for setting and adjustment.
Operating Instructions
Chronograph Function
The chronograph allows for precise timing of events.
- Activate: Press the 'MODE' button repeatedly until "CHRONO" or "STW" (Stopwatch) appears on the digital display.
- Start/Stop: Press the 'ADJ' button to start the chronograph. Press 'ADJ' again to stop.
- Reset: While stopped, press the 'SET' button to reset the chronograph to zero.
Alarm Settings
Your watch features three independent alarms.
- Access Alarm: Press the 'MODE' button until "ALARM" or "ALM" appears. Cycle through AL1, AL2, AL3 using 'SET'.
- Set Alarm Time: When the desired alarm is selected, press 'SET' to make the hour flash. Use 'ADJ' to set the hour. Press 'SET' to move to minutes, then use 'ADJ' to set minutes.
- Activate/Deactivate: Press 'ADJ' while in the alarm display mode to toggle the alarm ON/OFF. An alarm icon will appear when active.
- Hourly Chime: In the alarm mode, press 'SET' until "CHIME" flashes. Use 'ADJ' to toggle the hourly chime ON/OFF.
Backlight
To illuminate the digital display in low-light conditions, press the 'EL' (Electro-Luminescent) button, typically located on the top left or bottom right of the watch case.
Maintenance
Water Resistance
This watch is water resistant to 100 meters (330 feet). This rating is suitable for showering, swimming, and snorkeling. Do not press any buttons or operate the crown while the watch is wet or submerged. Ensure the crown is fully pushed in before any water exposure.
Cleaning
To clean your watch, wipe it with a soft, damp cloth. For the resin strap, mild soap and water can be used, then rinse thoroughly and dry. Avoid harsh chemicals or abrasive materials.
Battery Replacement
When the display becomes dim or the watch stops functioning, the battery may need replacement. It is recommended to have the battery replaced by a qualified watch technician to ensure proper sealing and water resistance.

Image: Rear view of the watch, showing the stainless steel case back and the yellow resin strap with its buckle.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Watch not keeping time (analog) | Crown is pulled out; Low battery. | Ensure crown is fully pushed in. Replace battery. |
| Digital display is blank or dim | Low battery. | Replace battery. |
| Buttons not responding | Watch is wet; Malfunction. | Ensure watch is dry before pressing buttons. If issue persists, contact support. |
| Water inside watch | Crown not fully pushed in; Gasket damage. | Immediately take to a watch repair specialist. |
Specifications
- Model Number: 20/5372BYLTB
- Brand: Armitron
- Movement: Japanese Quartz
- Case Material: Resin
- Strap Material: Resin
- Water Resistance: 100 meters (330 feet)
- Display Type: Analog-Digital
- Functions: Chronograph, 3 Alarms, Hourly Chime, Military Time, Dual Time, Backlight
- Shipping Dimensions: 11 x 9.91 x 7.59 cm
- Weight: 150 grams
- First Available Date: March 20, 2023
Warranty and Support
For warranty information or technical support, please refer to the official Armitron website or contact their customer service. Keep your purchase receipt as proof of purchase for warranty claims.
You can typically find contact information or support resources on the manufacturer's official website: www.armitron.com
For product-specific inquiries related to model 20/5372BYLTB, please provide the model number and ASIN (B0BX7C7DHD) when contacting support.
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