{"reference": {"slug": "greubel-forsey-naissance", "brand": "Greubel Forsey", "ref": "NAISSANCE", "model": "Naissance d'Une Montre 1", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/greubel-forsey-naissance", "description": "The Greubel Forsey Naissance d’Une Montre 1 was produced between 2016 and 2019 as a collaborative project between Robert Greubel, Stephen Forsey, and Michel Boulanger. This 18k white gold reference represents a technical effort to preserve traditional hand-manufacturing techniques, as the watch was constructed without the use of CNC machinery. The manual-wind movement features a one-minute tourbillon, a large balance wheel, and a power reserve of 55 hours. The dial is characterized by an off-center time display and an open-worked architecture that exposes the hand-finished bridges and wheels. Production was limited to 11 pieces globally. On the secondary market, this reference typically commands prices in the mid-to-high six-figure range. A notable auction result occurred at Christie’s in 2016, where the first prototype in white gold sold for approximately $1.46 million, with proceeds benefiting the Time Æon Foundation."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "greubel-forsey-naissance-d-une-montre-1-n-1-11-2026", "brand": "Greubel Forsey", "reference": "Naissance d'Une Montre 1 (N°1/11)", "model": "Naissance d'Une Montre 1", "case_material": "18k White Gold", "hammer_usd": 2100000, "year_sold": 2026, "venue": "Phillips Geneva", "lot_summary": "The first production example of a limited series of 11 pieces, this watch was a collaboration between Greubel Forsey, Philippe Dufour, and Michel Boulanger to preserve traditional watchmaking skills.", "source_url": "https://www.phillips.com/detail/greubel-forsey-x-philippe-dufour-x-michel-boulanger/CH080126/65", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-naissance-d-une-montre-1-n-1-11-2026"}, {"slug": "greubel-forsey-le-garde-temps-naissance-d-une-montre-project-2022", "brand": "Greubel Forsey", "reference": "Le Garde Temps Naissance d'Une Montre Project", "model": "Montre École", "case_material": "18k White Gold", "hammer_usd": 888461, "year_sold": 2022, "venue": "Sotheby's Hong Kong", "lot_summary": "Number 9 of 11 pieces from the project led by Greubel Forsey and Philippe Dufour to preserve traditional hand-watchmaking techniques.", "source_url": "https://www.sothebys.com/en/buy/auction/2022/important-watches-i/le-garde-temps-naissance-dune-montre-project", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-le-garde-temps-naissance-d-une-montre-project-2022"}, {"slug": "greubel-forsey-naissance-d-une-montre-2-2023", "brand": "Greubel Forsey", "reference": "Naissance d'Une Montre 2", "model": "Naissance d'Une Montre 2", "case_material": "18k White Gold", "hammer_usd": 456629, "year_sold": 2023, "venue": "Phillips Geneva", "lot_summary": "A unique piece created by Dominique Buser and Cyrano Devanthey under the mentorship of Greubel Forsey and Urwerk, entirely handcrafted.", "source_url": "https://www.phillips.com/detail/greubel-forsey-x-urwerk-x-dominique-buser-x-cyrano-devanthey/CH080123/124", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/greubel-forsey-naissance-d-une-montre-2-2023"}]}