{"reference": {"slug": "greubel-forsey-balancier", "brand": "Greubel Forsey", "ref": "BALANCIER", "model": "Balancier S2", "case_material": "Titanium", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/greubel-forsey-balancier", "description": "The Greubel Forsey Balancier S2, introduced in 2021 as an evolution of the original Balancier S, remains in limited production with a total of 88 pieces planned for the brushed titanium version and 64 for the charcoal finish. Collectors prioritize this reference for its 46.5mm ovoid titanium case, which features an integrated lug design and a 100-meter water resistance rating, making it the brand's most sports-oriented offering. The movement utilizes a 30-degree inclined balance wheel to compensate for gravity-induced timing errors, a signature technical hallmark of the manufacture. The dial architecture is characterized by a prominent suspended bridge and a high level of hand-finishing, including frosted plates and polished bevels. On the secondary market, these timepieces typically trade in the $160,000 to $210,000 range. A notable variant includes the 2022 edition featuring a carbon fiber case, which further reduced the overall weight."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "greubel-forsey-gmt-balancier-convexe-2025", "brand": "Greubel Forsey", "reference": "GMT Balancier Convexe", "model": "GMT Balancier Convexe (1 of 1)", "case_material": "Titanium", "hammer_usd": 302400, "year_sold": 2025, "venue": "Christie's Dubai", "lot_summary": "A unique 1-of-1 titanium world time tourbillon with a rotating globe and UTC display, part of the 'Stories in Time' collection.", "source_url": "https://www.christies.com/en/lot/lot-6483901", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-gmt-balancier-convexe-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-balancier-convexe-s-2025", "brand": "Greubel Forsey", "reference": "Balancier Convexe S²", "model": "Balancier Convexe S² Carbon", "case_material": "Carbon Composite", "hammer_usd": 176400, "year_sold": 2025, "venue": "Christie's Dubai", "lot_summary": "A rare carbon composite limited edition of 22 pieces with a 30° inclined balance wheel and a modern, sporty aesthetic.", "source_url": "https://www.christies.com/en/lot/lot-6483900", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-balancier-convexe-s-2025"}, {"slug": "greubel-forsey-balancier-s2-2023", "brand": "Greubel Forsey", "reference": "Balancier S2", "model": "Balancier S2", "case_material": "Titanium", "hammer_usd": 155222, "year_sold": 2023, "venue": "Phillips Geneva", "lot_summary": "A contemporary sports-oriented model with an inclined balance wheel and a 72-hour power reserve, limited to 88 pieces.", "source_url": "https://www.phillips.com/detail/greubel-forsey/CH080223/139", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-balancier-s2-2023"}]}