{"reference": {"slug": "breguet-7800bb", "brand": "Breguet", "ref": "7800BB", "model": "La Musicale - La Gazza Ladra", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-7800bb", "description": "The Breguet Classique La Musicale reference 7800BB/11/9V6 was introduced in 2010 and remains in the current catalog. Collectors prioritize this reference for its caliber 777M movement, which incorporates a patented musical mechanism utilizing a pinned disc and fifteen metal teeth to play Rossini’s \"The Thieving Magpie.\" The 48mm 18k white gold case features a liquid-metal membrane for acoustic amplification and a dial that rotates during the musical performance. The dial is finished with hand-guilloché patterns and a platinum coating. On the secondary market, this reference typically trades in the $90,000 to $130,000 range, depending on condition and the presence of the original resonance box. A notable production detail is the use of silicon for the escapement and balance spring to mitigate magnetic interference. In 2013, a rose gold variant (7800BR) was released, though the white gold remains the primary aesthetic configuration for this complication."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "breguet-7800bb-2025", "brand": "Breguet", "reference": "7800BB", "model": "La Musicale - La Gazza Ladra", "case_material": "18k White Gold", "hammer_usd": 28800, "year_sold": 2025, "venue": "Bonhams London", "lot_summary": "A rare 18K white gold automatic wristwatch with a music alarm that plays Rossini's 'The Thieving Magpie' while the dial rotates.", "source_url": "https://www.bonhams.com/auctions/29538/lot/7/", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/breguet-7800bb-2025"}]}