{"reference": {"slug": "jacob-co-at100", "brand": "Jacob & Co", "ref": "AT100", "model": "Astronomia Tourbillon Bucherer BLUE", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/jacob-co-at100", "description": "The Jacob & Co. Astronomia Tourbillon Bucherer BLUE (Reference AT100.30.AA.AA.A) was released in 2019 as a limited edition of 18 pieces. Collectors value this reference for its 50mm 18k white gold case featuring four sapphire crystal windows and its Bucherer-exclusive blue color scheme. The manual-wind Caliber JCAM10 movement utilizes a four-arm carousel that rotates every twenty minutes, supporting a triple-axis gravitational tourbillon, a 288-facet sapphire \"Jacob Cut\" diamond, a magnesium globe, and a differential-driven time display. This specific collaboration represents a high-complication pillar of the brand’s modern history. On the secondary market, this reference typically commands prices in the mid-to-high six-figure range, often between $400,000 and $600,000 depending on condition. In 2022, a unique piece from this series was sent to the International Space Station and subsequently auctioned for charity, highlighting the technical durability of the movement architecture."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "jacob-co-at100-30-ac-sd-a-2022", "brand": "Jacob & Co", "reference": "AT100.30.AC.SD.A", "model": "Astronomia Tourbillon Bucherer BLUE", "case_material": "18k White Gold", "hammer_usd": 441000, "year_sold": 2022, "venue": "Sotheby's New York", "lot_summary": "A piece unique triple-axis tourbillon that traveled to the International Space Station on the first private commercial mission (Rakia), sold to benefit charity.", "source_url": "https://www.sothebys.com/en/buy/auction/2022/jacob-co-astronomia-bucherer-blue", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/jacob-co-at100-30-ac-sd-a-2022"}]}