{"reference": {"slug": "jacob-co-009", "brand": "Jacob & Co", "ref": "009", "model": "Astronomia Solar", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/jacob-co-009", "description": "The Jacob & Co. Astronomia Solar 18k Pink Gold (Reference AS300.40.AS.AK.A) was introduced around 2017 as a more compact, wearable evolution of the original Astronomia. Collectors value this reference for the JCAM19 caliber, a 447-component manual-wind movement featuring a 10-minute vertical rotating platform with three arms. These arms support a flying tourbillon, a magnesium globe, and a differential-driven time display, all set against a baseplate of aventurine representing the night sky. The 44.5mm case utilizes a sapphire crystal monoblock side for 360-degree visibility. While the standard Solar is not a numbered limited edition, its complex assembly limits annual output. On the secondary market, this reference typically trades in the $180,000 to $260,000 range. A notable production detail is the \"Planets\" variant, which replaces the baseplate with semi-precious stone spheres representing the solar system, often commanding a premium at specialized auctions."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "jacob-co-009-101-2024", "brand": "Jacob & Co", "reference": "009/101", "model": "Astronomia Solar", "case_material": "18k Pink Gold", "hammer_usd": 119700, "year_sold": 2024, "venue": "Christie's Dubai", "lot_summary": "A spectacular manual-winding tourbillon watch representing the solar system with eight planets rotating around a central 1.5-carat citrine sun.", "source_url": "https://www.christies.com/en/lot/lot-6511545", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/jacob-co-009-101-2024"}]}