{"reference": {"slug": "roger-dubuis-ex427793", "brand": "Roger Dubuis", "ref": "EX427793", "model": "Excalibur", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/roger-dubuis-ex427793", "description": "The Roger Dubuis Excalibur EX427793 is a discontinued reference produced during the mid-to-late 2000s, a period defined by the brand’s adherence to the Poinçon de Genève standards across its entire catalog. This model features a 42mm 18k white gold case characterized by the collection's signature triple lugs and notched bezel. It is powered by the manufacture Calibre RD77, an automatic movement featuring a micro-rotor and 42 hours of power reserve. The dial utilizes a silvered finish with oversized black Roman numerals and a small seconds sub-dial at 9 o'clock. Collectors value this reference for its integration of traditional Geneva seal finishing within a bold, contemporary design language. On the secondary market, this model typically trades between $10,000 and $15,000 depending on condition and the presence of original documentation. A notable production detail is the limited run of 888 pieces, a common numbering convention for the brand during this era."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "roger-dubuis-ex427793-7ar-2016", "brand": "Roger Dubuis", "reference": "EX427793.7AR", "model": "Excalibur", "case_material": "18k White Gold", "hammer_usd": 77500, "year_sold": 2016, "venue": "Phillips Hong Kong", "lot_summary": "A rare 46.5mm white gold Excalibur, limited to 28 pieces, showcasing the brand's transition into larger, more avant-garde designs.", "source_url": "https://www.phillips.com/detail/roger-dubuis/HK080116/114", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/roger-dubuis-ex427793-7ar-2016"}]}