Zenith Chronomaster Original 'On the Fly' Extension Link

Zenith Chronomaster Original 'On the Fly' Extension LinkPRE ORDER NOTICE: Weve received unprecedented demand for Zenith On The Fly Links. A second batch of 50 units is now in production, with estimated shipping in April 2026. Timelines may run over slightly depending on final QC. Pre orders are final, so please only purchase if you intend to keep your watch. YOUR BRACELET IS NEVER THE PERFECT FIT Morning: perfect. Afternoon: too tight. Evening: too loose. Heat, cold, and movement change your wrist your

Protected by two patents

Crafted from anodized aluminum in a bold

Will SwiftLink Fit My Grand Seiko

Sinn makes some of the toughest

A half link also restores perfect balance between your watch head and clasp — something you can’t achieve by only adjusting on one side with the clasp’s micro-adjust holes

These end links are not universal and not compatible with third-party bracelets or straps

Pre-orders are final

InstantlyEngineered for Rolex two-tone models with yellow gold centre links

For Collectors Who Demand the Perfect Fit

and looking exactly as if it came that way from the factory

allowing you to seamlessly switch back to your original bezel when desired

with estimated shipping in April 2026