The Audemars Piguet Royal Oak Perpetual Calendar (ref. 26574OR.OO.1220OR.02) reinterprets one of the brand’s most celebrated complications in full 18ct pink gold, underscored by a vivid blue “Grande Tapisserie” dial. The pairing of lustrous metal with the textured dial creates a striking aesthetic balance, further elevated by the graphic complexity of its calendar subdials.

Its 41mm case houses the self-winding calibre 5134, developed specifically to suit this larger Royal Oak format. The movement tracks day, date, month, leap year, and moonphase, while adding a quietly useful week indicator around the periphery. Despite its functionality, the case remains just 9.5mm thick – a testament to Audemars Piguet’s mastery of ultra-thin design. The calibre offers a power reserve of 40 hours and sits behind a sapphire display back. Water-resistance is rated to 20m.

Released in 2015, the 26574 series brought contemporary proportions to the Royal Oak Perpetual Calendar while retaining the model’s lineage of fine finishing and integrated design. This reference in pink gold and blue remains one of the most sought-after metal-dial pairings in the collection.