Kim Kardashian was recently photographed wearing an Audemars Piguet Royal Oak Perpetual Calendar Openworked in 18-carat rose gold, reference 25829OR — a discontinued model that rarely surfaces in public and even more rarely on the wrist. The image, captured by FlyNet, underlines the entrepreneur's increasingly deliberate approach to horology, moving well beyond logo recognition into genuinely scarce mechanical territory.
The Royal Oak Perpetual Calendar Openworked ref. 25829OR is built around calibre 2885, an in-house automatic movement measuring 36mm in diameter and carrying a 40-hour power reserve. The perpetual calendar module tracks date, day, month, moon phase, and leap year cycle without manual correction until 2100. The openworked finishing strips away the dial entirely, leaving the entire mechanism visible through the characteristic Royal Oak 39mm case with its integrated bracelet and Gérald Genta-designed octagonal bezel secured by eight hexagonal screws. Case thickness sits at approximately 9.5mm — remarkably slim given the complication stack beneath the sapphire crystal.
Audemars Piguet introduced perpetual calendar variants of the Royal Oak in the 1980s, and the skeletonized execution represented the manufacture's willingness to combine grand complication watchmaking with architectural transparency. Reference 25829OR was produced in limited numbers in rose gold, and AP officially discontinued the reference, making existing examples the only supply. Among collectors, openworked perpetual calendars from this era occupy a specific niche: technically demanding, visually complex, and resistant to the kind of mass-market familiarity that now surrounds standard Royal Oak references.
Kardashian has built a watch wardrobe that reflects genuine curatorial instinct. Her documented AP sightings have included Royal Oak Offshore and core Royal Oak pieces, but the 25829OR signals a step toward discontinued complications — the kind of watch a dealer or trusted advisor sources specifically rather than purchases off a boutique shelf.
On the secondary market, the Audemars Piguet Royal Oak Perpetual Calendar Openworked ref. 25829OR in rose gold currently trades around the €120,000 mark, reflecting both its discontinued status and the premium the market places on AP perpetual calendar complications in precious metal. No official retail price remains active.
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