Audemars Piguet Royal Oak Automatic Silver Dial Stainless Steel Unisex Watch 15450ST.OO.1256ST.01. Stainless steel case with a brushed stainless steel bracelet. Fixed 22kt white gold bezel. Silver grand tapisserie dial with silver-tone hands and stick hour markers. Minute markers around the outer rim. Automatic movement with a 60 hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Skeleton case back. Case diameter: 37 mm. Case thickness: 9.8 mm. Octagonal case shape. Band width: 19.05 mm. Band length: 7.5 inches. Deployment with push button clasp. Water resistant at 50 meters / 165 feet. Functions: date, hour, minute, second.