{"reference": {"slug": "audemars-piguet-26585ce", "brand": "Audemars Piguet", "ref": "26585CE", "model": "Royal Oak Perpetual Calendar Openworked", "case_material": "Black Ceramic", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-26585ce", "description": "The Audemars Piguet Royal Oak Perpetual Calendar Openworked reference 26585CE.OO.1225CE.01 was introduced in 2019 and remains in the current catalog as a boutique-exclusive model. Collectors prioritize this reference for its full black ceramic construction, including the case, bezel, and integrated bracelet, which requires high labor intensity to finish. It houses the self-winding caliber 5135, a skeletonized movement visible through a sapphire dial that features smoked external zones and pink gold applied hour markers. The secondary market price for this reference typically ranges between $375,000 and $450,000, though it reached significantly higher peaks in 2022. A notable production detail is the use of a titanium folding clasp for durability against the ceramic links. In 2021, a unique \"Cactus Jack\" collaboration variant was released, but the standard 26585CE remains the foundational high-complication ceramic model for the brand."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "audemars-piguet-26585ce-oo-1225ce-01-2022", "brand": "Audemars Piguet", "reference": "26585CE.OO.1225CE.01", "model": "Royal Oak Perpetual Calendar Openworked", "case_material": "Black Ceramic", "hammer_usd": 529900, "year_sold": 2022, "venue": "Sotheby's New York", "lot_summary": "A skeletonized iteration of the black ceramic perpetual calendar, showcasing the intricate in-house caliber 5135.", "source_url": "https://www.sothebys.com/en/articles/the-six-most-expensive-audemars-piguet-royal-oak-watches", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/audemars-piguet-26585ce-oo-1225ce-01-2022"}]}