Audemars Piguet Royal Oak Chronograph «50th Anniversary» (26240STOO1320ST02) self – winding automatic watch, features a 41mm stainless steel case surrounding a black Grande Tapiserrie dial on a stainless steel bracelet with folding buckle. Functions include hours, minutes, small seconds, date and flyback chronograph This watch comes complete with the original box and papers. Scattered Serial. We back this watch with a 2-Year WatchBox warranty!