{"reference": {"slug": "h-moser-cie-6810-1200", "brand": "H. Moser & Cie", "ref": "6810-1200", "model": "Streamliner Cylindrical Tourbillon Only Watch", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/h-moser-cie-6810-1200", "description": "The H. Moser & Cie. Streamliner Cylindrical Tourbillon Only Watch (reference 6810-1200) is a unique piece produced in 2021 specifically for the Only Watch charity auction. This reference features a 42.3mm stainless steel integrated-bracelet case housing the automatic caliber HMC 810. Collectors value this watch for its three-dimensional architecture, which includes a one-minute flying tourbillon with a cylindrical hairspring and a sub-dial tilted at a 40-degree angle. The dial is composed of Vantablack, a substance that absorbs 99.965% of light, creating a high-contrast backdrop for the raised sapphire sub-dial. While standard Streamliner Tourbillons trade in the low-to-mid six-figure range, this specific unique piece achieved a hammer price of 750,000 CHF at the 2021 Christie’s Only Watch auction. It represents a significant collaboration between H. Moser & Cie. and MB&F, utilizing technical elements from their shared development history."}, "listing_stats": {"count": 2, "median": 61050.0, "low": 24100.0, "high": 98000.0, "brands": 1, "merchants": 1}, "listings": [{"id": "h_7428602101969", "title": "H. Moser & Cie STREAMLINER CYLINDRICAL TOURBILLON ALPINE LIMITED EDITION", "brand": "H. Moser & Cie", "model": "STREAMLINER CYLINDRICAL TOURBILLON ALPINE LIMITED EDITION", "reference": "—", "price_usd": 98000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 42.3, "movement": "Automatic", "complications": ["Tourbillon"], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/Alpine.1.jpg?v=1717011248", "detail_url": "https://mostexpensivewatches.net/listing/h_7428602101969", "buy_url": "https://mostexpensivewatches.net/out/h_7428602101969", "available": true}, {"id": "h_7428597809361", "title": "H. Moser & Cie STREAMLINER CENTRE SECONDS PURPLE HAZE", "brand": "H. Moser & Cie", "model": "STREAMLINER CENTRE SECONDS PURPLE HAZE", "reference": "—", "price_usd": 24100.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/purplehaze.1.jpg?v=1717009492", "detail_url": "https://mostexpensivewatches.net/listing/h_7428597809361", "buy_url": "https://mostexpensivewatches.net/out/h_7428597809361", "available": true}], "auction_lots": [{"slug": "h-moser-cie-6810-1200-2021", "brand": "H. Moser & Cie", "reference": "6810-1200", "model": "Streamliner Cylindrical Tourbillon Only Watch", "case_material": "Stainless Steel", "hammer_usd": 817500, "year_sold": 2021, "venue": "Christie's Geneva", "lot_summary": "A unique piece created for Only Watch 2021, featuring a Vantablack dial and a three-dimensional movement with a cylindrical hairspring developed in collaboration with MB&F.", "source_url": "https://www.christies.com/lot/lot-6338515", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/h-moser-cie-6810-1200-2021"}]}