{"reference": {"slug": "heuer-2446sf", "brand": "Heuer", "ref": "2446SF", "model": "Mareographe", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-2446sf", "description": "The Heuer Mareographe reference 2446SF was produced during the late 1960s and early 1970s. This model utilizes the Valjoux 72 movement, modified with a tide indication complication displayed via a subdial at nine o'clock. Collectors prioritize this reference for its use of the second-execution Autavia compressor case, featuring a snap-on back and a rotating bezel marked with tide intervals. The dial is characterized by its white registers against a black background, specifically designed for maritime use. Production numbers were low, making it rarer than standard Autavia chronographs of the same era. On the secondary market, prices typically range from $50,000 to $90,000 depending on condition and provenance. A notable production detail is the \"SF\" designation, which stands for Seafarer, reflecting its relationship with the Abercrombie & Fitch branded versions of the same movement and case architecture."}, "listing_stats": {"count": 4, "median": 14700.0, "low": 7400.0, "high": 45000.0, "brands": 1, "merchants": 2}, "listings": [{"id": "h_7645446144109", "title": "Heuer 1960s Heuer Autavia (Ref. 2446) First Execution Case W/ Mk. II Dial", "brand": "Heuer", "model": "1960s Heuer Autavia (Ref. 2446) First Execution Case W/ Mk. II Dial", "reference": "2446", "price_usd": 45000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img035957_782ca6fc-14bd-499e-bedc-76013e72966f.jpg?v=1745953167", "detail_url": "https://mostexpensivewatches.net/listing/h_7645446144109", "buy_url": "https://mostexpensivewatches.net/out/h_7645446144109", "available": true}, {"id": "h_6569059352685", "title": "Heuer 1970s Orvis Solunagraph (Ref. 2446SF)", "brand": "Heuer", "model": "1970s Orvis Solunagraph (Ref. 2446SF)", "reference": "2446SF", "price_usd": 20500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/products/DSC07762.jpg?v=1619747329", "detail_url": "https://mostexpensivewatches.net/listing/h_6569059352685", "buy_url": "https://mostexpensivewatches.net/out/h_6569059352685", "available": false}, {"id": "h_15751403012441", "title": "Heuer Heuer Autavia 2446 Reverse Panda Dial", "brand": "Heuer", "model": "Heuer Autavia 2446 Reverse Panda Dial", "reference": "2446", "price_usd": 8900.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Chronograph"], "merchant_slug": "bulang-and-sons", "merchant_name": "Bulang & Sons", "image_url": "https://cdn.shopify.com/s/files/1/0961/8613/8969/files/W-1078-Heuer-Autavia_001.jpg?v=1756206689", "detail_url": "https://mostexpensivewatches.net/listing/h_15751403012441", "buy_url": "https://mostexpensivewatches.net/out/h_15751403012441", "available": false}, {"id": "h_15751375520089", "title": "Heuer Heuer Autavia 2446 Reverse Panda Dial", "brand": "Heuer", "model": "Heuer Autavia 2446 Reverse Panda Dial", "reference": "2446", "price_usd": 7400.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Chronograph"], "merchant_slug": "bulang-and-sons", "merchant_name": "Bulang & Sons", "image_url": "https://cdn.shopify.com/s/files/1/0961/8613/8969/files/W-1471HeuerAutavia2446Chronograph.jpg?v=1756206091", "detail_url": "https://mostexpensivewatches.net/listing/h_15751375520089", "buy_url": "https://mostexpensivewatches.net/out/h_15751375520089", "available": false}], "auction_lots": [{"slug": "heuer-2446sf-2024", "brand": "Heuer", "reference": "2446SF", "model": "Mareographe", "case_material": "Stainless Steel", "hammer_usd": 13860, "year_sold": 2024, "venue": "Christie's Geneva", "lot_summary": "A rare tide-indication chronograph with a compressor case, notable for lacking a retail signature on the dial.", "source_url": "https://www.christies.com/lot/lot-6499318", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/heuer-2446sf-2024"}]}