Audemars Piguet Royal Oak Chronograph (26320STOO1220ST01) 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 has been serviced and comes with the original box. J Serial. Time remaining on the Manufacturer’s service warranty!