Audemars Piguet Royal Oak 25636PT, perpetual calendar, openwork dial, platinum


This rare, Audemars Piguet Perpetual Calendar Royal Oak Ref. 25636PT is one of the earliest executions of AP’s open-worked Quantième Perpétuel Automatique, housed within a Royal Oak case. Featuring a decoratively-engraved rotor and bracelet stamped by none other than Gay Frères, only 34 examples were made in platinum.