Audemars Piguet Royal Oak Perpetual Calendar Openworked

A masterpiece of haute horlogerie, the Royal Oak Perpetual Calendar Openworked 26586BA showcases Audemars Piguet’s exceptional craftsmanship and technical mastery. Crafted entirely in 18k yellow gold, this iconic timepiece features a fully skeletonized dial revealing the intricate Calibre 5135.

Equipped with a perpetual calendar displaying day, date, month, leap year, and moonphase, it is engineered to remain accurate for generations. The signature Royal Oak design—highlighted by its octagonal bezel and integrated bracelet—blends timeless aesthetics with cutting-edge watchmaking.