{"query": "EX42", "brand": null, "total": 2, "limit": 10, "matches": [{"slug": "roger-dubuis-ex42", "brand": "Roger Dubuis", "ref": "EX42", "model": "Excalibur Chronograph", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/roger-dubuis-ex42", "description": "The Roger Dubuis Excalibur Chronograph EX42 in stainless steel was produced during the mid-2000s, representing the era when the manufacture’s founder was still active in the company. Collectors prioritize this reference for its RD78 movement, an in-house, integrated column-wheel chronograph caliber featuring a micro-rotor and the Poinçon de Genève certification. The 42mm case is characterized by a triple-lug design and a notched bezel, while the dial typically features oversized Roman numerals and a bi-compax layout. Production for these early steel models was limited, often restricted to 280 pieces per variation. On the secondary market, these watches generally trade between $8,000 and $12,000 depending on condition and the presence of original documentation. A notable production detail is that these movements were among the first high-complication calibers developed entirely in-house by the brand before its acquisition by the Richemont Group.", "score": 199}, {"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.", "score": 84}]}