Few complications carry the Royal Oak's iconic octagonal architecture quite like the Perpetual Calendar. Reference 26574ST.OO.1220ST.01 houses the full calendar mechanism within a 41mm stainless steel case, presenting all the perpetual calendar's indications across a clean white dial that keeps the display legible without sacrificing refinement.
The stainless steel bracelet echoes the case material throughout, maintaining the model's cohesive, sport-luxe character that has defined the Royal Oak line for decades. At 41mm, the case size sits comfortably for a broad range of wearers while giving the dial layout the room it deserves.
This example is presented in unworn condition and comes as a complete set, including the original Audemars Piguet box and Audemars Piguet papers — a meaningful detail for collectors who value provenance and traceability.
