Introduction
This manual provides essential instructions for the proper setup, operation, and maintenance of your Armitron Men's Day-Date Function Bracelet Watch, Model 20-5398. Please read this guide thoroughly to ensure optimal performance and longevity of your timepiece.
Product Overview
The Armitron Men's Day-Date Function Bracelet Watch is designed for reliability and style, featuring a durable construction and practical day/date display. Key features include:
- Mineral crystal lens for enhanced scratch resistance.
- Black sunray dial with a day/date calendar window.
- Gold-tone luminous hands, markers, and an outer minute track for visibility.
- Gold-tone adjustable link bracelet with a fold-over clasp and double push-button safety.
- Water resistant to 165 feet (50 meters).

Figure 1: Front view of the Armitron Men's Day-Date Function Bracelet Watch, Model 20-5398.
Setup and Initial Adjustment
Setting the Time
- Pull the crown (the small knob on the side of the watch) out to the outermost position.
- Rotate the crown clockwise or counter-clockwise to set the hour and minute hands to the correct time.
- Once the time is set, push the crown back into its normal operating position.
Setting the Day and Date
- Pull the crown out to the first click position (intermediate position).
- Rotate the crown in one direction to adjust the date and in the other direction to adjust the day.
- Adjust the day and date to the previous day and date. For example, if today is Wednesday the 15th, set the watch to Tuesday the 14th.
- Pull the crown out to the outermost position and advance the time past 12 AM until the correct day and date are displayed. This ensures the day/date changes at midnight, not noon.
- Set the correct time and push the crown back into its normal operating position.
Bracelet Adjustment
The gold-tone link bracelet is adjustable. For precise fitting, it is recommended to have the bracelet adjusted by a professional jeweler. This typically involves removing or adding links to achieve the desired fit.

Figure 2: Side view illustrating the watch crown.
Operating Instructions
Once the time, day, and date are set, your Armitron watch will operate continuously. The luminous hands and markers provide visibility in low-light conditions. The fold-over clasp with double push-button safety ensures secure wear.
Maintenance
Water Resistance
This watch is water resistant to 165 feet (50 meters). This means it is suitable for short periods of recreational swimming, but not for diving or snorkeling. Avoid operating the crown while the watch is wet or submerged to prevent water intrusion.
Cleaning
To maintain the appearance of your watch, wipe it regularly with a soft, dry cloth. For the bracelet, a soft brush and mild soapy water can be used, followed by thorough rinsing and drying. Avoid harsh chemicals or abrasive materials.
Battery Replacement
The watch is powered by a quartz movement and requires a battery. When the watch stops or the second hand begins to jump erratically, it indicates a low battery. Battery replacement should be performed by a qualified watch technician to ensure proper sealing and water resistance.

Figure 3: Back view of the watch, showing the case back.
Troubleshooting
Incorrect Day/Date Display
If the day or date does not change correctly at midnight, it may be set to change at noon. Follow the instructions in the "Setting the Day and Date" section to correct this. Ensure you advance the time past 12 AM to set the correct day and date.
Watch Not Running
If the watch is not running, check if the crown is fully pushed in. If it is, the battery may need replacement. Refer to the "Battery Replacement" section for guidance.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 20/5398BKGP |
| Movement | Quartz |
| Lens Material | Mineral Crystal |
| Water Resistance | 165 feet (50M) |
| Case Dimensions | Approximately 4.57 x 3.19 x 2.91 inches (Package) |
| Weight | Approximately 10.23 ounces (Package) |
| Manufacturer | Armitron |
Warranty and Support
For detailed warranty information and customer support, please refer to the documentation included with your purchase or visit the official Armitron website. Keep your proof of purchase for any warranty claims.





