{"reference": {"slug": "patek-philippe-2523", "brand": "Patek Philippe", "ref": "2523", "model": "World Time", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/patek-philippe-2523", "description": "The Patek Philippe Reference 2523 was produced between 1953 and the late 1960s, with total production estimated at fewer than 25 units across all metals. This reference is distinguished by its two-crown system—one at 3 o'clock for winding and time-setting, and another at 9 o'clock for rotating the city ring—and its use of the manual-wind Caliber 12-400 HU. Collectors prioritize this model for its 36mm \"Heures Universelles\" case construction and the variety of dial centers, which include plain gold, guilloché, or cloisonné enamel maps. Due to its extreme rarity and historical significance as a mid-century world timer, the 18k yellow gold variant typically commands prices between $2.5 million and $5 million on the secondary market. A notable 1953 yellow gold example featuring a blue enamel dial center sold at auction in 2023 for approximately $3.4 million, reflecting its status among high-level acquisitions."}, "listing_stats": {"count": 30, "median": 77500.0, "low": 31000.0, "high": 175000.0, "brands": 1, "merchants": 5}, "listings": [{"id": "h_7515199209559", "title": "Patek Philippe Patek Philippe World Time Cloisonné", "brand": "Patek Philippe", "model": "Patek Philippe World Time Cloisonné", "reference": "40930881", "price_usd": 129500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Chronograph", "GMT / Dual Time", "World Time"], "merchant_slug": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS11474_40930881_PATEKPHILIPPE_WORLDTIMERGENAMEL_5131R-001-5.jpg?v=1763567963", "detail_url": 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Patek Philippe World Time", "brand": "Patek Philippe", "model": "Patek Philippe World Time", "reference": "40930418", "price_usd": 40000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Chronograph", "GMT / Dual Time", "World Time"], "merchant_slug": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS09713_40930418_PATEKPHILIPPE_WORLDTIMEW-BRACELET_5130G-6.jpg?v=1730498960", "detail_url": "https://mostexpensivewatches.net/listing/h_7236763811927", "buy_url": "https://mostexpensivewatches.net/out/h_7236763811927", "available": false}], "auction_lots": [{"slug": "patek-2523-worldtime-cloisonne", "brand": "Patek Philippe", "reference": "2523", "model": "World Time Cloisonné Enamel Dial", "case_material": "18k Pink Gold", "hammer_usd": 8968750, "year_sold": 2019, "venue": "Phillips Geneva", "lot_summary": "Two-crown world time with hand-painted cloisonné enamel North America map dial. From a series of fewer than 10 examples with map dials.", "url": "https://mostexpensivewatches.net/auctions/patek-2523-worldtime-cloisonne"}, {"slug": "patek-philippe-2523-2026", "brand": "Patek Philippe", "reference": "2523", "model": "\"South America\" World Time", "case_material": "18k Yellow Gold", "hammer_usd": 10247000, "year_sold": 2026, "venue": "Phillips Geneva", "lot_summary": "An extraordinarily rare dual-crown world time wristwatch featuring a polychrome cloisonné enamel dial depicting the map of South America. It is one of only two known examples with this specific dial configuration.", "source_url": "https://www.phillips.com/detail/patek-philippe/CH080126/27", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/patek-philippe-2523-2026"}, {"slug": "patek-philippe-2523-2023", "brand": "Patek Philippe", "reference": "2523", "model": "World Time 'North America'", "case_material": "18k Yellow Gold", "hammer_usd": 8530000, "year_sold": 2023, "venue": "Christie's Hong Kong", "lot_summary": "An exceptionally rare world time reference featuring a cloisonné enamel dial depicting the map of North America, one of only three known.", "source_url": "https://www.christies.com/en/lot/lot-6428453", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/patek-philippe-2523-2023"}, {"slug": "patek-philippe-2523j-2024", "brand": "Patek Philippe", "reference": "2523J", "model": "World Time 'Eurasia'", "case_material": "18k Yellow Gold", "hammer_usd": 8380000, "year_sold": 2024, "venue": "Christie's Hong Kong", "lot_summary": "A legendary reference featuring a cloisonné enamel dial with a map of Eurasia, representing the 'golden age' of Patek Philippe world time watches.", "source_url": "https://www.christies.com/en/lot/lot-6479867", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/patek-philippe-2523j-2024"}, {"slug": "patek-philippe-2523-2021", "brand": "Patek Philippe", "reference": "2523", "model": "\"Eurasia\" World Time", "case_material": "18k Yellow Gold", "hammer_usd": 7819051, "year_sold": 2021, "venue": "Phillips Geneva", "lot_summary": "Nicknamed the \"Silk Road,\" this previously unknown example features a cloisonné enamel dial depicting the Eurasian landmass. It established a record for any yellow gold wristwatch at the time of its sale.", "source_url": "https://www.phillips.com/detail/patek-philippe/CH080121/33", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/patek-philippe-2523-2021"}, {"slug": "patek-philippe-2523-1-2012", "brand": "Patek Philippe", "reference": "2523/1", "model": "World Time 'Tiffany & Co.'", "case_material": "18k Yellow Gold", "hammer_usd": 1022500, "year_sold": 2012, "venue": "Christie's New York", "lot_summary": "The only known example of Ref. 2523/1 retailed and signed by Tiffany & Co., setting a record for the reference at the time of sale.", "source_url": "https://www.christies.com/en/lot/lot-5576151", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/patek-philippe-2523-1-2012"}]}