Audemars Piguet Royal Oak Chronograph (26331STOO1220ST02) 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 chronograph. This watch comes complete with the original box and papers. J Serial. We back this watch with a 2-Year WatchBox warranty!