The SwiftLink® Spring Blade — For Rolex bracelets A patent-pending, world-first micro-adjustable bracelet link. A complete mechanical system hidden inside a single link, letting you fine-tune bracelet comfort in seconds. No tool. No removing the watch. No change to how it looks. Four indexed positions, each locking positively into place. No sliding, no guessing. You feel the mechanism arrive. The Spring Blade generates its locking force from within its own body. No separate spring, no weld, no joint to fail. Internal surfaces are cut by wire EDM to seven microns, a level of precision normally reserved for aerospace, inside something smaller than a fingertip. The exterior is machined from 904L stainless steel, matched to your bracelet for colour and finish. The working components inside are hardened steel, selected for wear life. Your original bracelet. Your original clasp. Nothing replaced, nothing modified. In stock and shipping now. See how it was built →