{"reference": {"slug": "roger-dubuis-ex45", "brand": "Roger Dubuis", "ref": "EX45", "model": "Excalibur Double Tourbillon", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/roger-dubuis-ex45", "description": "The Roger Dubuis Excalibur Double Tourbillon reference EX45-01-50-00/0RR01/B was produced during the mid-to-late 2000s and is no longer in current production. Collectors target this 45mm 18k white gold model for the RD01 manual-wind movement, which features two differential-linked flying tourbillons and carries the Poinçon de Genève. The dial is characterized by oversized Roman numerals and a skeletonized view of the escapements. This reference represents the brand’s transition into high-complication technical aesthetics under the original vision of Roger Dubuis. On the secondary market, this specific white gold model typically trades in the $60,000 to $90,000 range, depending on provenance and service history. A notable production detail is that this reference was often limited to 28 pieces globally, a common restriction for the brand's high-complication white gold variants during that era, ensuring relative scarcity compared to later mass-produced iterations."}, "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"}]}