1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Armitron Sport 20/5477 Analog-Digital Chronograph Watch. Please read this manual thoroughly to ensure proper use and to maximize the lifespan of your timepiece.
2. Key Features
- Analog-digital display for time, seconds, day, and date.
- Chronograph function for precise timing.
- Three independent alarms.
- Hourly chime option.
- Military time display.
- Countdown timer.
- Dual time zone display.
- Backlight for low-light visibility.
- Water resistant to 330 feet (100 meters).
- Durable grey resin case with black top ring.
- Comfortable yellow resin strap with buckle closure.
3. Watch Components

Figure 1: Front View. This image displays the watch face, highlighting the analog hands, digital time, date, and various function indicators. The yellow resin strap and black case are visible.

Figure 2: Side View. This image illustrates the watch from the side, detailing the placement of the 'SET', 'MODE', 'ADJ', and 'EL' buttons, which are used for various settings and functions.

Figure 3: Back View. This image shows the reverse side of the watch, featuring the stainless steel case back with model information and the yellow resin strap with its buckle closure.
Your Armitron Sport watch features multiple buttons for various functions:
- MODE Button (Bottom Left): Cycles through different modes (Time, Chronograph, Alarm, Timer, Dual Time).
- SET Button (Top Left): Used to enter and confirm settings in various modes.
- ADJ Button (Top Right): Adjusts values or moves selection during setting.
- EL Button (Bottom Right): Activates the backlight.
4. Setup Instructions
4.1 Setting Analog Time
- Pull out the crown (the small knob on the right side of the watch case, typically between the ADJ and EL buttons) to the first position.
- Rotate the crown to move the analog hands to the desired time.
- Push the crown back in to set the analog time.
4.2 Setting Digital Time and Date
- From the normal time display, press the MODE button repeatedly until the digital time display starts flashing, indicating it's in setting mode.
- Press the SET button to cycle through the settings: seconds, hour, minute, year, month, day.
- Use the ADJ button to increase the flashing value. Hold ADJ to quickly advance.
- Once all settings are correct, press the MODE button to exit the setting mode.
4.3 Setting Alarms
- Press the MODE button until you reach the Alarm mode (usually indicated by 'AL' or a bell icon).
- Press the SET button to select the alarm you wish to set (A1, A2, A3).
- Press SET again to make the hour digit flash. Use the ADJ button to set the desired alarm hour.
- Press SET to make the minute digit flash. Use the ADJ button to set the desired alarm minute.
- Press MODE to exit the alarm setting mode.
- To activate/deactivate an alarm, in Alarm mode, use the ADJ button to toggle the alarm ON/OFF.
5. Operating Instructions
5.1 Chronograph Function
- Press the MODE button until you reach the Chronograph mode (indicated by 'CH' or 'STW').
- Press the ADJ button to start the stopwatch.
- Press ADJ again to pause the stopwatch.
- Press SET to reset the stopwatch to zero while paused.
5.2 Countdown Timer
- Press the MODE button until you reach the Timer mode (indicated by 'TMR').
- Press the SET button to enter setting mode. The hour digit will flash.
- Use the ADJ button to set the desired hour, then press SET to move to minutes, and repeat for seconds.
- Once the desired countdown time is set, press MODE to exit setting.
- Press ADJ to start the countdown. An alarm will sound when the timer reaches zero.
5.3 Dual Time Mode
- Press the MODE button until you reach the Dual Time mode (indicated by 'DT' or 'T2').
- Press the SET button to enter setting mode. The hour digit will flash.
- Use the ADJ button to set the desired hour for the second time zone.
- Press SET to move to minutes, and use ADJ to adjust.
- Press MODE to exit the setting mode.
5.4 Backlight Activation
Press the EL button (Bottom Right) to illuminate the digital display for a few seconds, enhancing visibility in dark conditions.
5.5 Hourly Chime
To activate or deactivate the hourly chime, navigate to the Time mode. Press the ADJ button. An icon (often a bell or speaker) will appear or disappear to indicate the chime status.
6. Maintenance
- Cleaning: Wipe the watch regularly with a soft, dry cloth. For resin straps, a mild soap and water solution can be used, followed by thorough rinsing and drying.
- Water Resistance: This watch is water resistant to 100 meters (330 feet). It is suitable for showering, swimming, and snorkeling. Do not operate buttons underwater. Avoid exposing the watch to hot water or steam, as this can compromise the water resistance seals.
- Battery Replacement: When the display dims or functions become erratic, the battery may need replacement. It is recommended to have the battery replaced by a qualified watch technician to ensure water resistance is maintained.
- Storage: Store your watch in a cool, dry place away from direct sunlight and extreme temperatures.
7. Troubleshooting
- Digital Display is Blank: The battery may be depleted. Replace the battery.
- Analog Hands Not Moving: Check if the crown is pushed in completely. If the issue persists after battery replacement, consult a technician.
- Incorrect Time/Date: Refer to Section 4.2 to reset the digital time and date. Ensure the analog time is also correctly set (Section 4.1).
- Water Inside Watch: Immediately take the watch to a qualified technician for inspection and repair to prevent further damage.
8. Specifications
- Model Number: 20/5477
- Case Material: Resin
- Strap Material: Resin
- Water Resistance: 100 meters (330 feet)
- Display Type: Analog-Digital
- Functions: Chronograph, 3 Alarms, Hourly Chime, Military Time, Timer, Dual Time, Backlight
- Manufacturer: Armitron Sport
9. Warranty and Support
Your Armitron Sport watch is covered by a manufacturer's warranty. For specific warranty details, please refer to the warranty card included with your purchase or visit the official Armitron website. For technical support or service inquiries, please contact Armitron customer service.





