Audemars Piguet Royal Oak Perpetual Calendar Black Ceramic 26579CE.OO.1225CE.01
The 41mm Audemars Piguet Royal Oak Perpetual Calendar Black Ceramic was launched in 2017 and is the flagship product of the Royal Oak Perpetual Calendar model series.
Audemars Piguet's ceramic perpetual calendar has the same fine and hand-faceted, satin, polished and beveled surfaces as the metal version. Due to the characteristics of ceramics, the black AP is lighter and more durable than the standard AP Royal Oak 26574. In addition, the challenge of manual polishing on the ceramic surface ensures that the black zirconia bracelet takes 33 hours to complete; this is three times the time required to execute the steel version.