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

Reference 26586IP.OO.1240IP.01 Royal Oak Ultra-Thin | A titanium and platinum automatic perpetual calendar wristwatch with moon phases, Circa 2020 Audemars Piguet

Dial: blue, satin-brushed Caliber: cal. 5133 automatic, 37 jewels Movement number: AU9362 Case: titanium, platinum bezel, case back secured by eight screws Case number: UH3026R Closure: titanium Audemars Piguet bracelet with double folding clasp Size: 41 mm diameter, bracelet circumference is approximately 170 mm Signed: case, dial and movement Box: yes Papers: yes Accessories: Audemars Piguet winding presentation box with outer packaging, International Warranty card, purchase invoice dated October 27, 2020, travel case, operating instructions book, booklet, two additional links, and setting pinIntroduced as a concept watch at SIHH 2018 and as a full production watch in 2019, The Audemars Piguet Royal Oak Perpetual Calendar Ultra-Thin is said to be the thinnest automatic perpetual calendar watch ever made. The watch measures 41mm wide and 6.3mm in height, which is 3.2mm slimmer than the ordinary Royal Oak Perpetual Calendar. The automatic caliber 5133 is based on the caliber 2120 found in the Royal Oak “Jumbo”. Consequently, it is one of the few ultra-thin movements with a full rotor, instead of a micro-rotor. This new movement is not just thinner, but also simpler, with only 256 components compared to 374 in the standard Royal Oak perpetual calendar caliber 2120. The model's diameter has been slightly increased to 41mm from the traditional 39mm to accommodate the movement. The case is predominantly made of an ultra-lightweight titanium alloy, including the main case and bracelet, with platinum center links, a hexagonal bezel, and a folding clasp. The dial features a lightly brushed blue color, with sunken sub-dials that are highly legible and clear to read, complemented by luminous hands and hour markers.