OYSTER PERPETUAL 40MM

Dial diameter: 40 mm, 904L stainless steel. Monocoque midshell. Screw-down case back and winding crown. Smooth border. Screw-down crown. Twinlock double waterproof system. Mirror material: scratch-resistant sapphire crystal glass. Water resistant to 100 meters/330 feet. Permanent mechanical self-winding movement with magnetic shielding. Functions: central hours, minutes and seconds. About 48 hours of power reserve. Flat three-piece link bracelet in Oystersteel. Folding Oysterclasp with Easylink 5mm comfort extension.