Audemars Piguet Royal Oak Perpetual Calendar – 25636BA.OO.0944BA.01

Audemars Piguet Royal Oak Perpetual Calendar Open-worked 25636BA.OO.0944BA.01 is a horological masterpiece that blends technical complexity with artistic finesse, crafted entirely in 18k yellow gold and powered by the ultra-thin Calibre 2120/2800SQ. This 39mm timepiece was the first open-worked perpetual calendar in the Royal Oak collection, marking a pivotal moment in Audemars Piguet’s history. The skeletonized dial reveals the intricate architecture of the Calibre 2120/2800SQ. It displays day, date, month, moon phase, and leap year indicators through a beautifully engraved and open-worked layout, allowing full appreciation of the movement’s mechanical ballet from both the dial and the sapphire caseback. The case, bezel, and integrated bracelet are all rendered in 18k yellow gold, giving the watch a warm, opulent presence. The iconic octagonal bezel with exposed screws frames the dial’s complexity, while the bracelet’s brushed and polished surfaces enhance the visual depth.