The Royal Oak Openworked Selfwinding ref. 15305 was introduced at SIHH 2010. It features a dateless, skeletonized version of the self-winding caliber 3120, which is housed in a 39mm case. Reference 15305OR.OO.D088CR.01 has a pink gold case and it's fitted with an alligator strap.
Sorry, this Watch is no longer part of the brands current collection.
Details here are shown for historical interest only.
AP 3129 is an in-house, self-winding, skeletonized movement. It is based on caliber AP 3120.
