The Audemars Piguet Royal Oak Perpetual Calendar Ultra-Thin 26586IP.OO.1240IP.01 is an exceptional expression of haute horlogerie, combining the iconic Royal Oak design with pioneering ultra-thin engineering. Introduced as a groundbreaking perpetual calendar, the timepiece features a 41mm titanium case measuring just 6.30mm in thickness, paired with a luxurious 950 platinum bezel. 

The watch features a sophisticated blue satin-brushed dial with a clean, modern presentation of the perpetual calendar indications. The dial displays the day, date, month, leap year and moon phase, while white gold applied hour markers and Royal Oak hands provide contrast and legibility. The fixed 950 platinum bezel complements the titanium case, creating a distinctive combination of technical lightness and precious-metal refinement. A glare-resistant sapphire crystal protects the dial while maintaining excellent visibility of the intricate displays.

The Royal Oak 26586IP is fitted with a satin-brushed titanium bracelet featuring polished 950 platinum links, echoing the contrasting materials of the case and bezel. The bracelet is secured by an Audemars Piguet titanium folding clasp, providing a comfortable and secure fit on the wrist. The combination of titanium and platinum gives the watch a distinctive visual character while keeping the overall construction exceptionally lightweight.

At the heart of the timepiece is the self-winding Audemars Piguet Calibre 5133, an ultra-thin perpetual calendar movement measuring only 2.89mm in thickness. The movement operates at a frequency of 2.75 Hz, or 19,800 vibrations per hour, and provides approximately 40 hours of power reserve. It incorporates the complex perpetual calendar mechanism along with day, date, month, leap-year and moon-phase indications, while its peripheral rotor allows the movement to remain remarkably slim. The open sapphire caseback provides a view of the finely finished calibre and its sophisticated architecture. The watch is rated for 20 metres of water resistance and uses a screw-locked crown for additional protection.

The Audemars Piguet Royal Oak Perpetual Calendar Ultra-Thin 26586IP.OO.1240IP.01 represents a remarkable balance of design, engineering and traditional watchmaking. Its titanium and platinum construction, contemporary blue dial and exceptionally thin Calibre 5133 combine to create a timepiece that is both technically ambitious and visually distinctive. 

 

Reference No. 26586IP.OO.1240IP.01