1. Product Overview
This manual provides instructions for the C7 Silicone Sport Watch Strap, designed for comfort and durability. This 20mm universal fit strap is made from high-quality silicone, offering a smooth and flexible feel for daily wear and sports activities. It features a quick-release pin system for easy installation and removal without the need for special tools.

Image: A vibrant red silicone watch strap, showcasing its smooth texture and the quick-release pins at both ends, ready for attachment to a smartwatch.
2. Package Contents
The package includes the following items:
- 1 x C7 20mm Sport Silicone Watch Strap
- 1 x Pair of 20mm Quick-Release Pins (pre-installed or separate)
- 1 x Fiscal Invoice (Nota Fiscal)
3. Specifications
| Material | High-Quality Silicone |
| Strap Width | 20mm |
| Total Length | Approximately 23 cm (13.5 cm + 9.5 cm) |
| Minimum Wrist Size | 13.3 cm |
| Maximum Wrist Size | 18 cm |
| Clasp Type | Buckle |
| Weight | 30 g (approximate, including packaging) |
| Manufacturer | C7 |
| Country of Origin | Brazil |
4. Compatibility
This 20mm watch strap is compatible with a wide range of smartwatches and traditional watches that use a 20mm lug width. Compatible models include, but are not limited to:
- Amazfit BIP / BIP LITE
- Amazfit BIP U / BIP S
- Amazfit GTS / GTS 2 / GTS MINI
- Amazfit GTR 42mm
- Vivoactive 3
- P8 COLMI / P70 / P80 / Q9
- Galaxy Watch Active 2 40mm (SM-R830, SM-R835, SM-R835FSDAZTO)
- Galaxy Watch Active 2 44mm (SM-R825, SM-R825FSKAZTO)
- Galaxy Watch Active 2 BT 44mm (SM-R820, SM-R820NZKAZTO)
- Galaxy Watch 42mm (R810, SM-R810, SM-R810NZDAZTO)
- Galaxy Watch Active 40mm (SM-R500, SM-R500NZSATGY)
- Gear S2 Classic (R732, SM-R732, SM-R7320ZKAZTO)
- Gear Sport (R600, SM-R600, SM-R600NZBATPH)
- Forerunner 645 Music
Note: Please verify your device's lug width before purchase to ensure compatibility.
5. Setup and Installation
The C7 Silicone Sport Watch Strap features quick-release pins for easy installation. No tools are required.
- Prepare Your Device: If your watch currently has a strap, carefully remove it by locating the spring bars or quick-release pins and detaching them from the watch lugs.
- Identify Strap Ends: Each half of the C7 strap has a quick-release pin. One end typically has the buckle, and the other has the adjustment holes.
- Attach First Half:
- Locate one quick-release pin on the strap.
- Slide the small lever on the pin inwards to retract one end of the pin.
- Insert the exposed end of the pin into one of the lug holes on your watch.
- While holding the lever, align the other end of the pin with the opposite lug hole.
- Release the lever, allowing the pin to extend and snap into the lug hole. Gently tug on the strap to ensure it is securely fastened.
- Attach Second Half: Repeat the process for the second half of the strap.
- Verify Security: Once both halves are attached, gently pull on each side of the strap to confirm they are firmly seated in the watch lugs.
6. Operating and Usage
To wear your watch with the C7 Silicone Sport Watch Strap:
- Place the watch on your wrist.
- Thread the longer strap end through the buckle.
- Insert the buckle pin into one of the adjustment holes that provides a comfortable and secure fit.
- Slide the excess strap through the two silicone keepers to secure it against your wrist.
Ensure the strap is not too tight to avoid discomfort or restrict circulation, nor too loose that the watch moves excessively on your wrist.
7. Maintenance and Care
To ensure the longevity and appearance of your C7 Silicone Sport Watch Strap, follow these care instructions:
- Cleaning: Wipe the strap regularly with a soft, damp cloth. For deeper cleaning, use mild soap and water, then rinse thoroughly and dry completely before reattaching to your watch.
- Avoid Harsh Chemicals: Do not use abrasive cleaners, solvents, or strong detergents, as these can damage the silicone material.
- Storage: When not in use, store the strap in a clean, dry place away from direct sunlight and extreme temperatures.
- Avoid Sharp Objects: Keep the strap away from sharp objects to prevent cuts or punctures.
8. Troubleshooting
Most issues with the watch strap are related to installation. If you encounter problems, consider the following:
- Strap Not Attaching Securely:
- Ensure the quick-release pin is fully retracted and then released into the lug hole.
- Verify that the strap width (20mm) matches your watch's lug width. An incorrect size will prevent proper attachment.
- Check for any obstructions in the watch's lug holes.
- Discomfort During Wear:
- Adjust the strap to a looser or tighter hole. The strap should be snug but not constricting.
- Ensure the strap is clean and free of debris that might cause irritation.
9. Warranty and Support
Your C7 Silicone Sport Watch Strap comes with a fiscal invoice (Nota Fiscal), which serves as proof of purchase and may be required for warranty claims or support inquiries.
For any questions, concerns, or support needs regarding your product, please contact the seller directly through the platform where the purchase was made. Please note that the watch itself is not included with this product.
C7COMPANY is a registered trademark. Unauthorized resale by other sellers is prohibited.