Royal Oak Perpetual Calendar Ultra-Thin Titanium Blue Dial
Royal Oak 26586IP.OO.1240IP.01 was introduced in 2019 as the Boutique Only production version of the 2018 RD#2. It is powered by the self-winding caliber 5133, which measures a mere 2.89mm in height. Cased in titanium & platinum, the total height is 6.3mm. The movement's perpetual calendar functions, normally on three different levels, have been re-arranged and merged into one single layer of no more than 0.35mm in thickness. Audemars Piguet developed two patented innovations: the end-of-the-month cam has been integrated into the date wheel, while the month cam has been combined to the month wheel. This movement consists of 256 parts. Caliber: 5133, Display: Analog, Diameter: 32.00mm, Jewels: 37, Reserve: 40 Hz, Frequency: 19800 BPH, Time: Day / Night Indication, Hours, Minutes, Date-Date, Day, Leap Year, Month, and Perpetual Calendar.
