Pre-Owned Audemars Piguet Royal Oak (4100BA) self-winding automatic watch, features a 34mm 18k yellow gold case surrounding a grey Tapisserie dial on an 18k yellow gold bracelet with a folding buckle. Functions include hours, minutes, seconds, and date. This watch comes with the original box and Extract. B Serial. We back this watch with a 2-Year WatchBox warranty!