Powering the 33mm Audemars Piguet Royal Oak 77321 is the self-winding caliber 2240. Ref. 77321ST.ZZ.1230ST.01 includes a stainless steel case, integrated bracelet, and silver dial.
Movement Type
Automatic
Caliber
AP 2240Jewels
28
Reserve
40
Frequency
28800
Hands
Center Seconds
Shape
Other
Material
Stainless Steel
Glass
Sapphire
Thickness
10.40 mm
Diameter
33.00 mm
Water Resistance
50.00 m
Dial Color
Silver
Material
Silver
Buckle
Bracelet
