1. Introduction
This manual provides comprehensive instructions for the CALYPSO K5818/4 X-trem digital watch. This sporty and functional timepiece is designed for daily wear and various activities, featuring a durable plastic case, a comfortable black plastic strap, and 10 ATM water resistance. Please read this manual carefully to ensure proper use and maintenance of your watch.
Image 1.1: CALYPSO K5818/4 X-trem Digital Watch on a wrist, showcasing its design.
Package Contents:
- CALYPSO K5818/4 X-trem Digital Watch
- User Manual (this document)
Image 1.2: The watch is typically supplied in a clear cylindrical packaging.
2. Watch Overview and Button Functions
Familiarize yourself with the buttons and their functions before operating your watch.
Image 2.1: Front view of the watch, highlighting button locations.
- MODE Button (Left-Bottom): Cycles through different modes (Time, Chronograph, Alarm).
- SET Button (Left-Top): Used to enter and confirm settings in various modes.
- ADJ Button (Right-Top): Adjusts values during setting, starts/stops chronograph.
- LIGHT Button (Right-Bottom): Activates the backlight for illumination.
3. Setup and Basic Operation
3.1. Setting Time and Date
- In Time Mode (normal time display), press and hold the SET button until the seconds begin to flash. This indicates you are in setting mode.
- Press the LIGHT button to cycle through the settings: Seconds → Hour → Minute → Year → Month → Day → 12/24-hour format.
- Use the ADJ button to increase the flashing value.
- Once all settings are adjusted, press the SET button to exit the setting mode.
3.2. Using the Chronograph (Stopwatch)
- From Time Mode, press the MODE button once to enter Chronograph Mode. The display will show '00:00:00'.
- Press the ADJ button to start the stopwatch.
- Press the ADJ button again to stop the stopwatch.
- While the stopwatch is stopped, press the SET button to reset it to '00:00:00'.
- Press the MODE button to return to Time Mode.
3.3. Setting the Alarm
- From Time Mode, press the MODE button twice to enter Alarm Mode. The display will show the alarm time.
- Press and hold the SET button until the hour digits begin to flash.
- Use the ADJ button to set the desired alarm hour.
- Press the LIGHT button to move to the minute digits, then use the ADJ button to set the desired alarm minute.
- Press the SET button to confirm the alarm time and exit setting mode.
- In Alarm Mode, press the ADJ button to toggle the alarm ON or OFF. An alarm icon will appear/disappear on the display.
3.4. Using the Backlight
Press the LIGHT button at any time to illuminate the display for a few seconds, making it visible in low-light conditions.
4. Water Resistance
Your CALYPSO K5818/4 X-trem watch has a water resistance rating of 10 ATM (100 meters).
- This means the watch is suitable for swimming, snorkeling, and water sports.
- It is not suitable for high-impact water sports or diving.
- Important: Do not operate any buttons while the watch is submerged in water or wet, as this can compromise the water seal and cause damage.
- After exposure to saltwater, rinse the watch with fresh water and dry it thoroughly.
5. Maintenance
5.1. Cleaning
To keep your watch in good condition:
- Wipe the watch case and strap regularly with a soft, damp cloth.
- Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the watch materials.
5.2. Battery Replacement
The watch is powered by a quartz movement with a battery. When the display becomes dim or stops functioning, the battery may need replacement. It is recommended to have the battery replaced by a qualified watch technician to ensure the water resistance seal is properly maintained.
5.3. Storage
When not in use, store your watch in a cool, dry place away from direct sunlight and extreme temperatures.
6. Troubleshooting
- Display is blank or faint: The battery may be low or depleted. Replace the battery.
- Time is incorrect: Reset the time and date according to the instructions in Section 3.1.
- Buttons are unresponsive: Ensure the watch is dry. If the issue persists, there may be internal damage, and professional inspection is recommended.
- Condensation inside the watch: This indicates a breach in the water resistance. Stop using the watch immediately and seek professional service to prevent further damage.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | K5818/4 |
| Display Type | Digital |
| Movement Type | Quartz |
| Water Resistance | 10 ATM (100 Meters) |
| Case Material | Polycarbonate (Plastic) |
| Band Material | Polycarbonate (Plastic) |
| Dial Window Material | Plastic |
| Case Diameter | 35 Millimeters |
| Band Width | 23 Millimeters |
| Case Thickness | 16.3 Millimeters |
| Weight | 40 Grams |
| Special Features | 24-hour Display, Chronograph |
8. Warranty and Support
8.1. Manufacturer's Warranty
Your CALYPSO K5818/4 X-trem watch is covered by a manufacturer's warranty. Please refer to the warranty card included with your purchase or visit the official CALYPSO website for detailed terms and conditions.
8.2. Spare Parts Availability
Spare parts for this model are available for up to 5 years from the date of purchase.
8.3. Customer Support
For any questions, service requests, or technical support, please contact CALYPSO customer service through their official website or authorized service centers. Keep your purchase receipt as proof of purchase for warranty claims.
