Audemars Piguet Royal Oak Offshore Men’s Watch 44MM Rose Gold Black Rubber 26401RO. 100 m (10 ATM). A striking design is highlighted in this Audemars Piguet Chronograph that is perfect for the standout individual. The 44 mm rose gold case is assembled with a screw-locked crown, a date window, and a water resistance of 330 feet. Powered by the self-winding 3126 calibre, this timepiece has a 50-hour power reserve.