The Audemars Piguet Royal Oak 15550 arrived in 2022 as the successor to the 15450. Reference 15551ST.ZZ.1356ST.01 is crafted with a stainless steel case, a diamond-set bezel, and a blue dial.
Movement Type
Automatic
Caliber
AP 5900Jewels
29
Reserve
60
Frequency
28800
Hands
Center Seconds
Shape
Other
Material
Stainless Steel
Glass
Sapphire
Thickness
9.00 mm
Diameter
37.00 mm
Water Resistance
50.00 m
Dial Color
Blue
Material
50th Anniversary