Upgrade your watch with a next-generation convex CTS fluororubber strap engineered for durability, comfort, and luxury styling.
Designed for modern watches and active lifestyles.
Made from high-quality CTS FKM / FPM fluororubber:
✔ Superior durability and flexibility
✔ Waterproof and sweat-resistant
✔ Dust-resistant non-sticky surface
✔ Heat and chemical resistance
✔ Soft, comfortable skin contact
The convex profile adds both comfort and a refined three-dimensional look.
Professional CTS adjustable structure allows precise sizing:
✔ Easily trim to your wrist size
✔ Clean internal adjustment design
✔ Perfect fit for small or large wrists
✔ Professional OEM-style appearance
Achieve a custom fit without bulky excess strap.
Equipped with a premium stainless steel deployment clasp:
✔ Secure double-lock folding system
✔ Elegant luxury design
✔ Balanced wrist comfort
✔ Easy wear and removal
✔ Durable long-term performance
Quick-release spring bars allow tool-free installation in seconds.
Designed for watches with standard lugs:
Available Sizes:
• 19mm
• 20mm
• 21mm
• 22mm
Fits most traditional watches and smart watches using spring bars.
(Please measure lug width before ordering.)
Ideal for:
✔ Daily wear
✔ Sports & outdoor activities
✔ Swimming environments
✔ Active lifestyle
✔ Professional use
FKM rubber maintains flexibility and color stability even under harsh conditions.
Brand: JUELONG
Model: JL-RWB144
Material: CTS FKM / FPM Fluororubber
Clasp Type: Double Folding Deployment Buckle
Band Length: 104mm + 104mm (Cut-To-Size Adjustable)
Thickness: Approx. 3–4mm
Sizes: 19mm / 20mm / 21mm / 22mm
Condition: New without tags
Gender: Unisex
Origin: Mainland China
Strap/Buckle Size:
• 19mm × 18mm
• 20mm × 18mm
• 21mm × 18mm
• 22mm × 20mm
Multiple colors available including:
Black, Blue, Cyan, Sky Blue, Orange, Brown, Green, Red, Gray, Yellow, Khaki
(Color availability may vary by size.)
• 1 × Convex CTS FKM Watch Strap
• 1 × Deployment Butterfly Buckle
• Quick Release Spring Bars Installed
(Watch not included)
✔ Premium convex ergonomic design
✔ Custom cut-to-size adjustment
✔ Luxury deployment buckle
✔ Waterproof professional material
✔ Comfortable for all-day wear
✔ Tool-free installation
A perfect upgrade for collectors and enthusiasts.
🚚 FAST & FREE SHIPPING – Estimated Delivery: 7–15 Days