The Audemars Piguet Royal Oak Tourbillon Chronograph Openworked 26343CE.OO.1247CE.0 is a limited edition of 100 pieces introduced in 2018. It features a black ceramic case of 44mm, which houses the hand-wound caliber 2936.
Hand-wound, skeletonized chronograph movement with tourbillon escapement. Audemars Piquet caliber 2936 features 299 parts and its height is listed as 7.60mm. Audemars Piguet caliber 2889 is similar but finished in a different manner, features 295 parts and its height is listed as 8.07mm.
