Audemars Piguet Royal Oak Double Balance Wheel Openwork Stainless Steel Skeleton Dial

The Royal Oak 15407 was introduced at SIHH 2016. It features an open-worked movement with two superimposed balance wheels in the typical Royal Oak case with dimensions similar to that of the 2015 15400.
Royal Oak Double Balance Wheel Openwork 41mm Skeleton-
Self-winding watch with date display. 41mm stainless steel case. slate grey open-worked dial. 18-carat pink gold applied hour markers. Royal Oak hands with luminescent coating. stainless steel bracelet. Water-resistant up to 50 meters.