{"query": "3857", "brand": null, "total": 1, "limit": 10, "matches": [{"slug": "breguet-3857", "brand": "Breguet", "ref": "3857", "model": "250th Anniversary Minute Repeating Perpetual Calendar Tourbillon", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-3857", "description": "The Breguet Reference 3857 was produced in 1997 as a limited edition of 300 pieces to commemorate the 250th anniversary of Abraham-Louis Breguet’s birth. This 18k yellow gold timepiece integrates three major complications: a minute repeater, a perpetual calendar, and a one-minute tourbillon. It utilizes the manual-wind Caliber 558 QP, which features a hand-engraved movement visible through a sapphire caseback. The 37mm case includes the brand’s signature coin-edge fluting and straight lugs, while the silvered gold dial displays four sub-dials and hand-guilloché patterns. Collectors value this reference for its historical significance and the density of complications within a traditional case size. On the secondary market, this reference typically trades in the low-to-mid six-figure range, often between $150,000 and $250,000 depending on condition. A notable auction result occurred at Christie’s in 2016, where a yellow gold example realized approximately $173,000.", "score": 199}]}