{"reference": {"slug": "breguet-b1772", "brand": "Breguet", "ref": "B1772", "model": "Chronomètre", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-b1772", "description": "The Breguet Chronomètre B1772 in 18k yellow gold was produced during the late 1980s and early 1990s, a period marking the brand's revival under Investcorp. This reference is valued for its use of the Caliber 591, an ultra-thin automatic movement based on the Lemania 8810 with twin barrels. The 35mm case features traditional Breguet design elements, including a coin-edge mid-case, straight lugs with screw-pins, and a solid gold dial decorated with hand-turned engine guilloché. Collectors prioritize this model for its chronometer certification and its representation of the Daniel Roth era of design. On the secondary market, this reference typically trades between $8,000 and $12,000 depending on the presence of original documentation. A notable production detail is the inclusion of an individual serial number on the dial, a practice consistent with historical Breguet marine chronometers."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "breguet-b1772-2016", "brand": "Breguet", "reference": "B1772", "model": "Chronomètre", "case_material": "18k Yellow Gold", "hammer_usd": 53025, "year_sold": 2016, "venue": "Phillips Geneva", "lot_summary": "A rare 1955 dress watch powered by the Peseaux 260 movement, originally designed for observatory chronometer trials.", "source_url": "https://www.phillips.com/detail/breguet/CH080216/120", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/breguet-b1772-2016"}]}