{"reference": {"slug": "patek-philippe-6301a-001", "brand": "Patek Philippe", "ref": "6301A-001", "model": "Grande Sonnerie Only Watch", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/patek-philippe-6301a-001", "description": "The Patek Philippe Grande Sonnerie Reference 6301A-001 is a unique piece manufactured specifically for the 2024 Only Watch charity auction. This reference is not in regular production, as it represents the first and only instance of the 6301 being cased in stainless steel rather than precious metal. The watch features the manual-wind caliber GS 36-750 PS IRM, which incorporates a grande sonnerie, petite sonnerie, and minute repeater alongside a jumping subsidiary seconds hand. The dial is finished in rare hand-guilloché blue green swirl pattern with Grand Feu enamel and features diamond-set hour markers. Because it is a unique piece, there is no established secondary market price range; however, it sold at auction in May 2024 for 15.7 million CHF. This specific reference is valued for its combination of a high-complication movement with a steel case, a pairing Patek Philippe reserves for unique or extremely limited editions."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "patek-philippe-6301a-001-2024", "brand": "Patek Philippe", "reference": "6301A-001", "model": "Grande Sonnerie Only Watch", "case_material": "Stainless Steel", "hammer_usd": 17300000, "year_sold": 2024, "venue": "Christie's Geneva", "lot_summary": "A unique steel version of the Grande Sonnerie with a hand-guilloché blue enamel dial, sold to benefit research into Duchenne muscular dystrophy.", "source_url": "https://www.christies.com/en/lot/lot-6479104", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/patek-philippe-6301a-001-2024"}]}