Black re-stock BBS Audemars Piguet Royal Oak Series Perpetual Calendar Watch.
Model: 26574ST.OO.1220ST.01 — the only version in the industry that achieves full original-function replication.
This Royal Oak Perpetual Calendar represents noble watchmaking craftsmanship, featuring an elegant blue dial paired with a cold-toned stainless steel case. It perfectly embodies Audemars Piguet’s design aesthetics and highly complex horological engineering.
The case is made of 316L stainless steel, with a diameter of 41mm and a thickness of 11.4mm. The blue dial is decorated with the signature “Grande Tapisserie” pattern, complemented by applied hour markers and faceted hands coated with luminous material.
The dial layout is symmetrically arranged with three sub-dials and a moon phase display, clearly presenting hours, minutes, day, date, week number, month, moon phase, and leap year indication in an orderly and balanced design.
It features a sapphire crystal with anti-reflective coating, enhancing overall clarity and transparency.
The movement is based on a 9015 automatic movement modified to replicate the Calibre 5134 architecture, delivering a highly accurate functional restoration that is considered a top-tier product in its category.
This watch is identified as Ref. 26574ST.OO.1220ST.01.




