Tudor Black Bay 41 Automatic Blue Bezel Stainless Steel. Polished and satin finish case, stainless steel bracelet with deployment clasp. Unidirectional rotatable bezel featuring a steel insert on a blue anodized aluminium disc. Black dial with silver tone luminous painted hour markers and hands. COSC certified automatic mechanical movement powered by Tudor MT5602 (Manufacture TUDOR). Approx 70-hour power reserve, sapphire crystal glass with screw-down crown. Water resistant to 200 meters / 660 feet. Comes with a 5-year WatchMaxx warranty and solid case back.