Audemars Piguet Royal Oak Offshore Chronograph (25721STOO1000ST01) self-winding automatic watch, features a 42mm stainless steel case surrounding a blue-grey petite Tapiserrie dial on a stainless steel bracelet with folding buckle. Functions include hours, minutes, small seconds, date, chronograph and tachymeter. This watch does not come with box or papers. E Serial. We back this watch with a 2-Year WatchBox warranty!