Curved-End Rubber Watch Strap with Metal Adapter 20–21mm – Folding Clasp (Sub / GMT / Daytona Fit)

Upgrade your watch with a curved-end rubber strap featuring a solid metal adapter for a cleaner integrated fit and enhanced stability. Designed for modern sport and diver-style watches, this strap combines flexible rubber comfort with a structured end-link connection for a more refined look.

The metal adapter helps improve case alignment while reducing movement at the lug connection, delivering a more secure and premium wearing experience. Paired with a folding deployment clasp and cut-to-fit construction, it is built for everyday wear, sport use, and long-term durability.

Key Features

• Curved-end design for improved case integration
• Solid metal adapter for stable and secure connection
• Flexible natural rubber for comfort and durability
• Waterproof groove-back design for breathability
• 316L stainless steel folding deployment clasp
• Cut-to-fit adjustable sizing for precise wrist fit
• Multiple clasp finish options available
• Oysterflex-style integrated sport strap design

Compatibility

• Compatible with watches using 20mm or 21mm lug width
• Compatible with curved-lug sport and diver-style watches
• Compatible with Rolex Submariner (20mm case)
• Compatible with Rolex GMT-Master (20mm case)
• Compatible with Rolex Yacht-Master (20mm case)
• Compatible with Rolex Daytona (21mm case)
• Compatible with Omega Seamaster models with similar lug structure
• Fit may vary depending on case curvature and lug geometry
• Curved-end adapter does not guarantee a perfect no-gap fit for all models
• Third-party replacement watch strap. Not affiliated with or endorsed by Rolex or Omega

Specifications

• Brand: VivaStraps
• Strap Material: Natural Rubber
• Adapter Material: Stainless Steel
• Clasp Material: 316L Stainless Steel
• Lug Width: 20mm / 21mm
• Strap Length: Approx. 60mm + 85mm (before trim)
• Adjustment: Cut-to-fit system
• Clasp Type: Folding Deployment Clasp
• Clasp Finish Options: Silver, Gold, Rose Gold, Black, Two-Tone
• End Type: Curved-End with Metal Adapter
• Back Structure: Groove Back (breathable)
• Installation Type: Spring Bar
• Condition: New

What's Included

• 1 × Curved-End Rubber Watch Strap
• 1 × Folding Deployment Clasp (selected finish)
• 1 × Metal End-Link Adapter Set
• Watch not included