{"reference": {"slug": "hublot-big-bang-sapphire", "brand": "Hublot", "ref": "411.JB", "model": "Big Bang Sapphire All Black", "case_material": "Sapphire Crystal", "url": "https://mostexpensivewatches.net/reference/hublot-big-bang-sapphire", "description": "Released in 2016 to commemorate the 10th anniversary of the All Black concept, the Hublot Big Bang Unico Sapphire All Black (reference 411.JB.4901.RT) was produced as a limited edition of 500 pieces. It is no longer in production. Collectors value this reference for its technical construction, featuring a case, bezel, and case back machined from blocks of smoked black sapphire crystal. It houses the in-house HUB1242 Unico movement, an automatic flyback chronograph with a column wheel visible through the skeletonized dial. The watch represents a significant milestone in the brand's history of material innovation, specifically the industrialization of shaped sapphire. On the secondary market, this reference typically trades between $45,000 and $65,000 depending on condition and provenance. While most Big Bang models utilize ceramic or gold, this specific 45mm variant remains a primary example of the brand’s transparent monochromatic design language."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "hublot-411-jb-4901-rt-4099-2025", "brand": "Hublot", "reference": "411.JB.4901.RT.4099", "model": "Big Bang Unico All Black Sapphire Rainbow", "case_material": "Smoked Sapphire and Titanium", "hammer_usd": 30480, "year_sold": 2025, "venue": "Phillips New York", "lot_summary": "A limited edition of 50 pieces featuring a smoked sapphire case and a bezel set with a rainbow gradient of sapphires, rubies, and amethysts.", "source_url": "https://www.phillips.com/detail/hublot/NY080125/50", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/hublot-411-jb-4901-rt-4099-2025"}]}