Black Bay 41mm "On the Fly" Extension Link Model Number:79540 By balancing the link count

By balancing the link count

This is a precision upgrade trusted by serious Rolex enthusiasts worldwide - a detail you’ll notice every time you put your watch on

this bezel seamlessly integrates with your timepiece

allowing you to effortlessly switch back to your original bezel at any time

Introducing SeaGreen for the Black Bay 58

Black Bay 41mm "On the Fly" Extension Link Model Number:79540 By balancing the link countYOUR BRACELET IS NEVER THE PERFECT FIT Morning: perfect. Afternoon: too tight. Evening: too loose. Heat, cold, and movement change your wrist your bracelet cant keep up. On The Fly fixes that with instant, tool free 5 mm adjustment, completely hidden under your clasp. Youll never see it, and neither will anyone else except theyll notice your watch always sits perfectly. Always Perfect Comfort on demand, in seconds. Invisible Upgrade Discreetly tucked