{"reference": {"slug": "roger-dubuis-ex45-01sq-20-00", "brand": "Roger Dubuis", "ref": "EX45-01SQ-20-00", "model": "Excalibur Double Tourbillon Squelette", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/roger-dubuis-ex45-01sq-20-00", "description": "The Roger Dubuis Excalibur Double Tourbillon Squelette reference EX45-01SQ-20-00 was introduced around 2009 and is no longer in current production. Collectors target this reference for its 45mm 18k white gold case and the caliber RD01SQ, a hand-wound movement featuring two differential-linked flying tourbillons. This model represents the brand’s transition toward its signature \"Astral Skeleton\" design language, characterized by star-shaped bridges and the Poinçon de Genève certification visible on the movement components. The production was limited to 28 pieces, making it a rare find compared to later non-limited iterations. On the secondary market, this specific reference typically commands prices in the $120,000 to $160,000 range depending on provenance and service history. A notable auction result occurred in 2016 when a similar white gold example achieved approximately $130,000, confirming the sustained value of these early, low-volume skeletonized complications."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "roger-dubuis-ex45-01sq-20-00-sx000-b-2016", "brand": "Roger Dubuis", "reference": "EX45-01SQ-20-00/SX000/B", "model": "Excalibur Double Tourbillon Squelette", "case_material": "18k White Gold", "hammer_usd": 125000, "year_sold": 2016, "venue": "Christie's New York", "lot_summary": "An extremely fine skeletonized double tourbillon model from the Excalibur collection, featuring diamond-set indices and the prestigious Geneva Seal.", "source_url": "https://www.christies.com/en/lot/lot-6007421", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/roger-dubuis-ex45-01sq-20-00-sx000-b-2016"}, {"slug": "roger-dubuis-ex45-01-5-nb-671-2021", "brand": "Roger Dubuis", "reference": "EX45 01 5 NB.671", "model": "Excalibur Double Tourbillon", "case_material": "18k White Gold", "hammer_usd": 57500, "year_sold": 2021, "venue": "Phillips Geneva", "lot_summary": "A technically advanced skeletonized double flying tourbillon in white gold, showcasing the brand's modern 'hyper-horology' direction.", "source_url": "https://www.phillips.com/detail/roger-dubuis/CH080221/225", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/roger-dubuis-ex45-01-5-nb-671-2021"}, {"slug": "roger-dubuis-ex45-79-5-3-7ar-2019", "brand": "Roger Dubuis", "reference": "EX45.79.5.3.7AR", "model": "Excalibur Split-Second Chronograph", "case_material": "18k Pink Gold", "hammer_usd": 18453, "year_sold": 2019, "venue": "Phillips Hong Kong", "lot_summary": "A limited edition split-second chronograph, numbered 1 of 28, featuring a complex manual-winding movement and oversized Excalibur case.", "source_url": "https://www.phillips.com/detail/roger-dubuis/HK080219/861", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/roger-dubuis-ex45-79-5-3-7ar-2019"}]}