Audemars Piguet Royal Oak Chronograph (26320BAOO1220BA02) self – winding automatic watch, features a 41mm 18k yellow gold case surrounding a blue grande tapiseerie dial on an 18k yellow gold bracelet with folding buckle. Functions include hours, minutes, small seconds, date and chronograph. This watch comes with the original box. I Serial. We back this watch with a 2-Year WatchBox warranty!