The Audemars Piguet Royal Oak Openworked Extra-Thin was originally a limited edition of 40 pieces in platinum created in honor of the 40th anniversary of the model series in 2012. However in 2014 it made a return as a 'Boutique Exclusive' edition, now featuring a solid pink gold case and matching bracelet.
Slim (3.05mm) self-winding movement, originally created by Jaeger-LeCoultre and used by Audemars Piguet, Vacheron Constantin and Patek Philippe; skeletonized with manual finish on both bridges and mainplate. Sapphire calendar disc.