Royal Oak Perpetual Calendar Openworked, Reference 25636PT.OO.0344PT.01 | A platinum skeletonized perpetual calendar with moon phases and bracelet | Circa 1990 Dial: skeletonized Calibre: cal. 2120/2800 automatic, 36 jewels Movement number: 324'247 Case: platinum, sapphire crystal display case back secured by 8 screws Case number: C77'660, n°16 Closure: platinum Audemars Piguet Gay Frères bracelet and 18k white gold clasp Size: 39 mm diameter, bracelet circumference approximately 190 mm Signed: case, dial and movement Box: no Papers: no Accessories: Audemars Piguet Digital Extract from the Archives
