The Royal Oak Perpetual Calendar is a complex version of AP's renowned luxury sports watch, originally launched in 1983 as a pioneer of the complicated sports category. Reference 25820ST.OO.0944ST.05 is crafted from stainless steel with a matching bracelet and a vibrant blue dial.
Shape
Other
Material
Stainless Steel
Glass
Sapphire
Thickness
9.30 mm
Diameter
39.00 mm
Water Resistance
20.00 m
Dial Color
Blue