Audemars Piguet Royal Oak Offshore Perpetual Calendar (26209TIOOD101CR01) self – winding automatic watch, features a 42mm titanium case surrounding a black dial on a black alligator strap with a titanium deployant buckle. Functions include hours, minutes, date, chronograph, day, month, moon phase and perpetual calendar This watch comes complete with the original box and papers. This is a Limited Edition piece of 35! We back this watch with a 2-Year WatchBox warranty!