{"reference": {"slug": "breguet-3999ba", "brand": "Breguet", "ref": "3999BA", "model": "Classique Hong Kong Handover", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-3999ba", "description": "The Breguet Classique reference 3999BA was produced in 1997 as a limited edition of 28 pieces to commemorate the handover of Hong Kong. This reference features a 36mm case in 18k yellow gold with the signature coin-edge profile and straight lugs. It utilizes the self-winding Caliber 502, an ultra-thin movement visible through a sapphire caseback. The solid gold dial is silvered and hand-guilloché, featuring a specific power reserve indicator at 11 o’clock and a date window at 6 o’clock. Collectors value this model for its extreme rarity and its status as one of the few modern Breguet limited editions tied to a specific geopolitical event. On the secondary market, these pieces typically trade between $15,000 and $25,000 depending on condition and the presence of original documentation. A notable auction result occurred at Sotheby’s in 2017, where a well-preserved example realized approximately $18,000."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "breguet-3999ba-15-286-2021", "brand": "Breguet", "reference": "3999BA/15/286", "model": "Classique Hong Kong Handover", "case_material": "18k Yellow Gold", "hammer_usd": 12980, "year_sold": 2021, "venue": "Phillips Hong Kong", "lot_summary": "Numbered 8 of a limited edition of 97 pieces made to commemorate the handover of Hong Kong on July 1, 1997.", "source_url": "https://www.phillips.com/detail/breguet/HK080221/812", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/breguet-3999ba-15-286-2021"}]}