{"reference": {"slug": "hublot-915", "brand": "Hublot", "ref": "915", "model": "MP-15 Takashi Murakami Tourbillon Only Watch", "case_material": "Polished Sapphire", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-915", "description": "The Hublot MP-15 Takashi Murakami Tourbillon Only Watch 2023 is a unique piece produced specifically for the 2023 Only Watch charity auction. This reference features the brand’s first central flying tourbillon, powered by the manual-wind caliber HUB9015 with a 150-hour power reserve. The 42mm case is constructed from polished clear sapphire, shaped into Murakami’s signature twelve-petaled flower motif. The dial is integrated into the movement architecture, surrounded by 444 gemstones including rubies, sapphires, and amethysts set into the petals. Collectors value this reference for its technical departure from standard Hublot layouts and its status as a one-of-one prototype for the subsequent limited production series. While the retail estimate was approximately $350,000 to $400,000, it sold at auction for 420,000 CHF. On the secondary market, unique Only Watch pieces typically command mid-to-high six-figure prices depending on private sale negotiations."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "hublot-915-jx-4802-rt-1198-owm23-2024", "brand": "Hublot", "reference": "915.JX.4802.RT.1198.OWM23", "model": "MP-15 Takashi Murakami Tourbillon Only Watch", "case_material": "Polished Sapphire", "hammer_usd": 462000, "year_sold": 2024, "venue": "Christie's Geneva", "lot_summary": "A unique collaboration with artist Takashi Murakami for Only Watch 2024, featuring Hublot's first central flying tourbillon in a flower-shaped sapphire case.", "source_url": "https://www.christies.com/en/lot/lot-6475510", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/hublot-915-jx-4802-rt-1198-owm23-2024"}, {"slug": "hublot-1915-8-2019", "brand": "Hublot", "reference": "1915.8", "model": "Classic Fusion", "case_material": "18k Pink Gold", "hammer_usd": 8750, "year_sold": 2019, "venue": "Christie's New York", "lot_summary": "A classic 42mm pink gold automatic wristwatch with a minimalist black dial and date function.", "source_url": "https://www.christies.com/en/lot/lot-6191110", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/hublot-1915-8-2019"}]}