{"reference": {"slug": "breguet-3050", "brand": "Breguet", "ref": "3050", "model": "Classique Perpetual Calendar", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-3050", "description": "The Breguet Classique Perpetual Calendar 3050 was produced from the late 1980s through the 1990s and is currently discontinued. Collectors value this reference for its 36mm case diameter and the ultra-thin caliber 502, which utilizes an off-center gold rotor to maintain a slim profile. The dial features traditional hand-guilloché patterns, blued steel pomme hands, and a leap year indicator integrated into the month sub-dial. The platinum variant is rarer than the yellow gold versions and is distinguished by its weight and silvered solid gold dial. On the secondary market, the 3050 in platinum typically trades between $25,000 and $35,000 depending on the presence of the original box and papers. A notable production detail is the use of a \"J\" prefix in the serial numbers for certain batches, and early examples often feature a solid caseback rather than the later sapphire display backs."}, "listing_stats": {"count": 1, "median": 45770.0, "low": 45770.0, "high": 45770.0, "brands": 1, "merchants": 1}, "listings": [{"id": "h_7308900434007", "title": "Breguet Breguet Classique Equation Of Time Perpetual Calendar", "brand": "Breguet", "model": "Breguet Classique Equation Of Time Perpetual Calendar", "reference": "40992076", "price_usd": 45770.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Perpetual Calendar"], "merchant_slug": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS09876_40992076_BREGUET_CLASSIQUEYG_3477-6.jpg?v=1730514175", "detail_url": "https://mostexpensivewatches.net/listing/h_7308900434007", "buy_url": "https://mostexpensivewatches.net/out/h_7308900434007", "available": false}], "auction_lots": [{"slug": "breguet-3050-2025", "brand": "Breguet", "reference": "3050", "model": "Classique Perpetual Calendar", "case_material": "Platinum", "hammer_usd": 45796, "year_sold": 2025, "venue": "Phillips Geneva", "lot_summary": "A historically important ultra-thin platinum perpetual calendar from 1990, a cornerstone of the brand's mechanical revival.", "source_url": "https://www.phillips.com/detail/breguet/CH080125/176", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/breguet-3050-2025"}]}