{"reference": {"slug": "patek-philippe-grandmaster-chime-6300a", "brand": "Patek Philippe", "ref": "6300A-010", "model": "Grandmaster Chime", "case_material": "Stainless Steel", "url": "https://mostexpensivewatches.net/reference/patek-philippe-grandmaster-chime-6300a"}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "patek-grandmaster-chime-6300a-only-watch", "brand": "Patek Philippe", "reference": "6300A-010", "model": "Grandmaster Chime", "case_material": "Stainless Steel", "hammer_usd": 31000000, "year_sold": 2019, "venue": "Christie's Geneva (Only Watch)", "lot_summary": "Steel-cased Grandmaster Chime made exclusively for the Only Watch 2019 charity sale. Patek's most complicated wristwatch (20 complications, double-faced reversible case) in a metal Patek never produces for retail. Sold for charity.", "url": "https://mostexpensivewatches.net/auctions/patek-grandmaster-chime-6300a-only-watch"}]}