{"reference": {"slug": "hublot-1432xxx", "brand": "Hublot", "ref": "1432XXX", "model": "Big Bang Unico Chronograph Rainbow 42mm", "case_material": "18k Rose Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-1432xxx", "description": "The Hublot Big Bang Unico Chronograph Rainbow 42mm (Reference 441.OX.9910.LR.0999) entered production around 2019 and remains a centerpiece of the brand’s contemporary catalog. Collectors target this reference for its complex gem-setting, featuring 166 colored gemstones on the 18k King Gold case and 108 gemstones on the bezel, including rubies, pink sapphires, amethysts, and blue topazes. It utilizes the in-house HUB1280 Unico manufacture movement, a self-winding flyback chronograph with a 72-hour power reserve and a visible column wheel on the dial side. The 42mm diameter offers a more wearable profile than the original 45mm version. On the secondary market, this model typically trades between $65,000 and $85,000 depending on condition and completeness. A notable production detail is the \"King Gold\" alloy, which uses platinum to ensure the red hue remains stable over years of exposure to the elements."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "hublot-1432xxx-2023", "brand": "Hublot", "reference": "1432XXX", "model": "Big Bang Unico Chronograph Rainbow 42mm", "case_material": "18k Rose Gold", "hammer_usd": 60480, "year_sold": 2023, "venue": "Christie's Dubai", "lot_summary": "A 42mm rose gold flyback chronograph featuring a rainbow-set gemstone bezel and skeletonized dial.", "source_url": "https://www.christies.com/en/lot/lot-6423903", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/hublot-1432xxx-2023"}]}