Introduction
This manual provides instructions for the setup, operation, and maintenance of your MARATHON Digital Desktop Clock. This compact and lightweight clock features a large, easy-to-read display, dual alarm functionality, temperature and date display, and a button-activated backlight. It is designed for use on a desk or nightstand.

Figure 1: MARATHON Digital Desktop Clock in use.
Setup
1. Battery Installation
The clock requires 3 AAA batteries (not included). To install:
- Locate the battery compartment cover on the back of the clock.
- Slide the cover open.
- Insert 3 AAA batteries, ensuring correct polarity (+/-).
- Replace the battery compartment cover.

Figure 2: Rear view of the clock with battery compartment and control buttons.
2. Initial Power On
Upon battery installation, the clock will power on and display default settings. You will need to set the current time, date, and alarm preferences.
Operating Instructions
1. Setting Time and Date
Use the buttons on the back of the clock (refer to Figure 2 for button layout):
- Press and hold the MODE button until the time display flashes.
- Use the UP (▲) and DOWN (▼) buttons to adjust the flashing value.
- Press MODE again to confirm the setting and move to the next adjustable item (e.g., hours, minutes, 12/24 hour format, year, month, day, language).
- Repeat steps 2 and 3 until all desired settings are configured.
- The clock supports 12 or 24-hour time format and displays the day of the week in seven languages: English, Dutch, French, Spanish, Italian, Danish, and German.
2. Setting Alarm
The clock features a dual alarm function for weekdays and weekends:
- Press and hold the ALARM SET (bell icon) button until the alarm time flashes.
- Use the UP (▲) and DOWN (▼) buttons to set the desired alarm time.
- Press ALARM SET again to confirm and move to the weekday/weekend alarm selection.
- Use the UP (▲) and DOWN (▼) buttons to select between weekday (1-5) and weekend (6-7) alarms.
- Press ALARM SET to exit alarm setting mode.
- To activate/deactivate an alarm, briefly press the ALARM SET button. An alarm icon will appear/disappear on the display.
3. Temperature Display
The clock displays indoor temperature. To switch between Fahrenheit (℉) and Celsius (℃):
- Locate the C/F button on the back of the clock (refer to Figure 2).
- Press the C/F button to toggle between the two temperature units.
4. Backlight Function
The clock features a vibrant blue backlight for enhanced visibility in low light conditions:
- Press the SNOOZE/LIGHT button located on the top of the clock.
- The backlight will illuminate for approximately 10 seconds.

Figure 3: Clock display with activated blue backlight.
Maintenance
1. Battery Replacement
When the display becomes dim or the clock functions erratically, it is time to replace the batteries. Follow the battery installation steps in the Setup section.
2. Cleaning
To clean the clock, use a soft, dry cloth. Avoid using abrasive cleaners or chemical solvents, as these may damage the display or casing.
Troubleshooting
- Blank or Dim Display: Check if the batteries are correctly installed and have sufficient charge. Replace batteries if necessary.
- Incorrect Time/Date: Reset the time and date settings following the Operating Instructions. If the issue persists, try replacing the batteries.
- Alarm Not Sounding: Ensure the alarm is activated (alarm icon visible on display) and the alarm time is correctly set.
- Temperature Reading Inaccurate: The internal thermometer provides an approximate indoor temperature. Ensure the clock is not placed near heat sources or in direct sunlight, which can affect readings.
Specifications
| Feature | Detail |
|---|---|
| Model Number | CL030050-GG-00-NA |
| Display Type | Digital |
| Product Dimensions | 3.7"W x 3.7"H (9.4 cm x 9.4 cm) |
| Power Source | Battery Powered (3 AAA batteries required) |
| Special Features | Alarm with Snooze, Backlight, Temperature Display (℉/℃), Date Display, 7-Language Day of Week |
| Mounting Type | Tabletop |
| Material | Plastic |

Figure 4: Product dimensions.
Warranty and Support
This MARATHON Digital Desktop Clock comes with a 1-year limited warranty. For warranty claims, technical support, or further assistance, please refer to the contact information provided with your product packaging or visit the official Marathon Watch website.


