1. Product Overview
The OLEVS Prismatic Diamond Watch Model 6642 is an analog quartz watch designed for women, featuring a unique prismatic cut mirror and a durable stainless steel band. It is powered by a precise Japanese Quartz movement, ensuring accurate timekeeping.
This watch combines elegant design with practical features, suitable for various occasions. The watch face is protected by a high-hardness coated glass mirror, offering scratch resistance for long-lasting clarity.

Figure 1: OLEVS Prismatic Diamond Watch (Green Face) on a wrist.
The watch is water-resistant up to 30 meters (100 feet), making it suitable for daily activities such as hand washing or brief immersion in water. However, it is not recommended for swimming or bathing.

Figure 2: Watch demonstrating daily life water resistance.
2. Setup
2.1 Setting the Time
- Gently pull out the crown (the small knob on the side of the watch case) to the first position.
- Turn the crown clockwise or counter-clockwise to adjust the hour and minute hands to the correct time.
- Once the time is set, push the crown back into its original position to start the watch movement.
2.2 Adjusting the Band
The stainless steel band features a hidden butterfly double buckle for a secure and comfortable fit. To adjust the band length, you may need to remove or add links. A tool for link adjustment is typically included with the watch.
- Identify the pins on the inner side of the watch band links.
- Use the provided link removal tool to push out the pins from the links you wish to remove.
- Remove the desired number of links to achieve a comfortable fit.
- Reconnect the band by inserting the pins back into the remaining links.

Figure 3: View of the hidden butterfly double buckle.

Figure 4: Product dimensions and specifications.
3. Operating the Watch
Once the time is set and the band is adjusted, your OLEVS Prismatic Diamond Watch is ready for daily wear. The Japanese Quartz movement ensures consistent and accurate timekeeping.
The watch is designed for ease of use, requiring no winding. Simply ensure the crown is fully pushed in after setting the time to maintain water resistance and proper function.
Video 1: Demonstration of the OLEVS watch on a wrist, showcasing its appearance and fit.
4. Maintenance
4.1 Cleaning
To maintain the watch's appearance, regularly wipe the case and band with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, followed by immediate drying. Avoid using harsh chemicals or abrasive materials, as these can damage the watch's finish and crystal.
4.2 Battery Replacement
The watch is powered by one LR44 battery, which is included. When the watch stops or begins to lose time, it indicates that the battery needs replacement. It is recommended to have the battery replaced by a professional watch technician to ensure the watch's water resistance is maintained.
4.3 Water Resistance Guidelines
- 30 Meters (100ft) Water Resistant: Suitable for everyday use. Splash/rain resistant. Not suitable for showering, bathing, swimming, snorkeling, or water-related work.
- Always ensure the crown is fully pushed in to prevent water entry.
5. Troubleshooting
- Watch Not Running: Check if the crown is fully pushed in. If it is, the battery may need replacement.
- Time Inaccurate: If the time is consistently incorrect, the battery may be low, or the watch may require servicing.
- Condensation Under Crystal: This indicates a potential breach in water resistance. Avoid further contact with water and seek professional service immediately.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | 6642 |
| Movement Type | Japanese Quartz |
| Case Diameter | 32 mm |
| Case Thickness | 12 mm |
| Band Width | 12 mm |
| Band Length | 18 cm |
| Band Material | Stainless Steel |
| Case Material | Stainless Steel |
| Crystal Type | Hardlex (Prismatic Cut) |
| Water Resistance Depth | 30 Meters (100 ft) |
| Battery Type | 1 x LR44 (included) |
| Weight | 64 grams |
7. Warranty and Support
OLEVS offers a 30-day return policy for products sold under the brand. Additionally, a one-year warranty is provided for manufacturing defects. For any issues or support inquiries, please refer to your purchase documentation or contact the seller directly.