The Audemars Piguet Royal Oak ref: 15551ST.ZZ.1356ST.05, measuring 37mm and made of stainless steel, features a blue dial and is equipped with the automatic Audemars Piguet caliber AP 5900 movement with a date display. Launched in 2022, this watch continues the design philosophy of the Royal Oak collection, combining modern technology with traditional craftsmanship, making it suitable for wearers who pursue precision and practicality.