Audemars Piguet Royal Oak Perpetual Calendar 26586TI.OO.1240TI.01

Audemars Piguet Royal Oak Perpetual Calendar Ultra-Thin

The Audemars Piguet Royal Oak Perpetual Calendar Ultra-Thin represents a refined integration of ultra-thin engineering and high-complication watchmaking within the Royal Oak design language. Crafted entirely in grade 5 titanium, the 41mm case measures just 6.3mm in height, combining a lightweight construction with the collection’s signature octagonal bezel, brushed and polished finishes, and integrated bracelet. The smoky blue sunburst dial features a subtle fumé gradient that darkens toward the edges, offering a clean visual contrast to the black recessed perpetual calendar subdials. Indications include date, day, month, leap year, day/night display, and a moon phase with aventurine background. Applied hour markers and Royal Oak hands in white gold are fitted with luminescent coating for clarity. Powering the watch is the in-house automatic calibre 5133, an ultra-thin perpetual calendar movement measuring only 2.89mm thick. Its single-level component architecture enables exceptional compactness while maintaining mechanical complexity. The skeletonised rotor, visible through the sapphire caseback, highlights the movement’s refined finishing and engineering.