Introduced in 2025 to celebrate the 150th anniversary of Audemars Piguet, the Royal Oak Perpetual Calendar Openworked reference 26585XT.OO.1220XT.01 marks the last use of the caliber AP 5135. The 41 mm case combines a BMG bezel and caseback frame with a titanium middle case and a screw-locked crown.
Shape
Other
Glass
Sapphire
Thickness
9.90 mm
Diameter
41.00 mm
Water Resistance
20.00 m
Dial Color
Skeleton
