{"reference": {"slug": "hublot-905", "brand": "Hublot", "ref": "905", "model": "MP-05 LaFerrari Sapphire", "case_material": "Sapphire Crystal", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-905", "description": "The Hublot MP-05 LaFerrari Sapphire (Reference 905.JX.0001.RT) was released in 2016 as a limited edition of 20 pieces, following the original 2013 titanium version. This reference is valued for its technical architecture, featuring the manual-wind HUB9005.H1.PN.1JN movement with a record-breaking 50-day power reserve achieved through 11 series-coupled barrels. The case is constructed from seven blocks of polished sapphire crystal, requiring over 600 hours of machining to achieve its complex, car-engine-inspired shape. It utilizes a vertical tourbillon and digital display cylinders for time and power reserve. On the secondary market, this reference typically commands prices in the mid-to-high six-figure range, often fluctuating between $300,000 and $550,000 depending on provenance. A notable production detail is the inclusion of a dedicated electronic screwdriver tool modeled after Formula 1 tire changers, which is required to wind the movement and set the time."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "hublot-905-jx-0001-rt-2020", "brand": "Hublot", "reference": "905.JX.0001.RT", "model": "MP-05 LaFerrari Sapphire", "case_material": "Sapphire Crystal", "hammer_usd": 260000, "year_sold": 2020, "venue": "Christie's Hong Kong", "lot_summary": "A rare limited edition masterpiece inspired by the LaFerrari supercar, featuring a record-breaking 50-day power reserve and a full sapphire case.", "source_url": "https://www.christies.com/en/lot/lot-6275811", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/hublot-905-jx-0001-rt-2020"}]}