{"reference": {"slug": "greubel-forsey-double", "brand": "Greubel Forsey", "ref": "DOUBLE", "model": "Double Tourbillon 30° Vision", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/greubel-forsey-double", "description": "The Greubel Forsey Double Tourbillon 30° Vision in platinum was introduced in 2004 as the brand’s inaugural timepiece, with production of the Vision series concluding around 2012. Collectors prioritize this reference for its historical significance as the foundation of the brand and its caliber GF02 movement, which features an inner tourbillon inclined at 30 degrees rotating every minute inside a four-minute outer carriage. The 43.5mm platinum case houses a multi-level dial with gold indices and a transparent caseback revealing hand-finished frosted bridges. Due to the low annual output of the manufacture, total production of this specific platinum variant remains limited to approximately 100 pieces. On the secondary market, these timepieces typically trade in the $160,000 to $220,000 range. A notable 2023 auction result at Christie’s saw a platinum example achieve approximately $189,000, confirming sustained demand for early, foundational Greubel Forsey complications."}, "listing_stats": {"count": 1, "median": 162000.0, "low": 162000.0, "high": 162000.0, "brands": 1, "merchants": 1}, "listings": [{"id": "h_7205395071059", "title": "Greubel Forsey Double Balencier | Edition Unique | White Gold", "brand": "Greubel Forsey", "model": "Double Balencier | Edition Unique | White Gold", "reference": "CWNWG_G1918", "price_usd": 162000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k White Gold", "case_size_mm": 43.0, "movement": "Automatic", "complications": [], "merchant_slug": "a-collected-man", "merchant_name": "A Collected Man", "image_url": "https://cdn.shopify.com/s/files/1/0606/5325/files/170f4cdc1e2fafbb61516afe598eabb3.jpg?v=1711359514", "detail_url": "https://mostexpensivewatches.net/listing/h_7205395071059", "buy_url": "https://mostexpensivewatches.net/out/h_7205395071059", "available": false}], "auction_lots": [{"slug": "greubel-forsey-double-tourbillon-30-vision-2010", "brand": "Greubel Forsey", "reference": "Double Tourbillon 30° Vision", "model": "Double Tourbillon 30° Vision", "case_material": "Platinum", "hammer_usd": 490000, "year_sold": 2010, "venue": "Christie's Geneva", "lot_summary": "A platinum example of the Double Tourbillon 30° Vision, the brand's first commercial model that established its reputation for high-end finishing.", "source_url": "https://www.christies.com/en/lot/lot-6483908", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-double-tourbillon-30-vision-2010"}, {"slug": "greubel-forsey-double-tourbillon-30-technique-blue-2022", "brand": "Greubel Forsey", "reference": "Double Tourbillon 30° Technique Blue", "model": "Double Tourbillon 30° Technique", "case_material": "Titanium", "hammer_usd": 315000, "year_sold": 2022, "venue": "Phillips New York", "lot_summary": "A striking skeletonized version of the brand's first invention, featuring a blue ADLC-coated titanium case and a 30-degree inclined double tourbillon.", "source_url": "https://www.phillips.com/detail/greubel-forsey/NY080122/137", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-double-tourbillon-30-technique-blue-2022"}, {"slug": "greubel-forsey-double-tourbillon-30-technique-2019", "brand": "Greubel Forsey", "reference": "Double Tourbillon 30° Technique", "model": "Double Tourbillon 30° Technique", "case_material": "18k White Gold", "hammer_usd": 254777, "year_sold": 2019, "venue": "Phillips Hong Kong", "lot_summary": "An openworked masterpiece that prioritizes chronometric performance through its patented 30-degree inclined double tourbillon system.", "source_url": "https://www.phillips.com/detail/greubel-forsey/HK080119/946", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-double-tourbillon-30-technique-2019"}, {"slug": "greubel-forsey-double-tourbillon-30-2025", "brand": "Greubel Forsey", "reference": "Double Tourbillon 30°", "model": "Double Tourbillon 30°", "case_material": "18k White Gold", "hammer_usd": 244942, "year_sold": 2025, "venue": "Christie's Hong Kong", "lot_summary": "A white gold limited edition of the Double Tourbillon 30°, the brand's first major invention that revolutionized tourbillon design.", "source_url": "https://www.christies.com/en/lot/lot-6483899", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-double-tourbillon-30-2025"}, {"slug": "greubel-forsey-double-balancier-convexe-2024", "brand": "Greubel Forsey", "reference": "Double Balancier Convexe", "model": "Double Balancier Convexe", "case_material": "Titanium", "hammer_usd": 227365, "year_sold": 2024, "venue": "Phillips Hong Kong", "lot_summary": "Features two inclined balance wheels connected by a spherical constant differential, housed in the brand's signature ergonomic convex titanium case.", "source_url": "https://www.phillips.com/detail/greubel-forsey/HK080124/898", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-double-balancier-convexe-2024"}, {"slug": "greubel-forsey-double-tourbillon-30-2016", "brand": "Greubel Forsey", "reference": "Double Tourbillon 30°", "model": "Double Tourbillon 30°", "case_material": "18k Pink Gold", "hammer_usd": 225806, "year_sold": 2016, "venue": "Phillips Hong Kong", "lot_summary": "A fine example of the brand's inaugural invention, featuring a 30-degree inclined double tourbillon in a classic pink gold case.", "source_url": "https://www.phillips.com/detail/greubel-forsey/HK080216/1095", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-double-tourbillon-30-2016"}, {"slug": "greubel-forsey-double-tourbillon-30-technique-2016", "brand": "Greubel Forsey", "reference": "Double Tourbillon 30° Technique", "model": "Double Tourbillon 30° Technique", "case_material": "18k White Gold", "hammer_usd": 213032, "year_sold": 2016, "venue": "Phillips Hong Kong", "lot_summary": "A highly technical openworked wristwatch with a 30-degree inclined double tourbillon, which won the 2011 International Chronometry Competition.", "source_url": "https://www.phillips.com/detail/greubel-forsey/HK080216/1107", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-double-tourbillon-30-technique-2016"}]}