{"reference": {"slug": "panerai-3646", "brand": "Panerai", "ref": "3646", "model": "Radiomir", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/panerai-3646", "description": "The Panerai Radiomir reference 3646 was produced between 1938 and the mid-1950s, primarily for the Italian Decima Flottiglia MAS. Collectors value this reference for its historical role as a functional military tool and its 47mm cushion-shaped stainless steel case manufactured by Rolex. It features the manual-wind Rolex Caliber 618 movement and wire lugs soldered to the case. Dial variations are a primary valuation driver, ranging from early \"California\" error-proof dials to the \"Sandwich\" construction designed for high luminosity. Due to its rarity and military provenance, secondary market prices typically fall within the $60,000 to $150,000 range, though exceptional examples can exceed this. A notable variant is the \"Kampfschwimmer\" version, often found with sterile dials lacking brand markings to prevent identification of captured German frogmen. In 2014, a 3646 with a rare anonymous dial sold at auction for over $120,000."}, "listing_stats": {"count": 17, "median": 4500.0, "low": 3500.0, "high": 7695.0, "brands": 1, "merchants": 2}, "listings": [{"id": "h_6895305982027", "title": "Panerai Panerai Radiomir 1940 GMT Power Reserve Mediterraneo PAM 946", "brand": "Panerai", "model": "Panerai Radiomir 1940 GMT Power Reserve Mediterraneo PAM 946", "reference": "1940", "price_usd": 7695.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["GMT / Dual Time"], "merchant_slug": "hodinkee", "merchant_name": "Hodinkee Shop", "image_url": "https://cdn.shopify.com/s/files/1/0146/0732/files/Panerai-Radiomir-1940-PAM-946-10-10-PAM-NA42PZ-89a8ebf51f3b_03d420a0-104d-40c0-a5da-d6a17b6e6ccf.jpg?v=1712725861", "detail_url": "https://mostexpensivewatches.net/listing/h_6895305982027", "buy_url": 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"https://mostexpensivewatches.net/out/h_6857063268427", "available": false}, {"id": "h_6978334818379", "title": "Panerai Panerai Radiomir Black Seal Logo PAM 754", "brand": "Panerai", "model": "Panerai Radiomir Black Seal Logo PAM 754", "reference": "754", "price_usd": 3500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "hodinkee", "merchant_name": "Hodinkee Shop", "image_url": "https://cdn.shopify.com/s/files/1/0146/0732/files/Panerai-Radiomir-Black-Seal-PAM-754-10-10-PAM-EMTYXA-e796dcf82b49_c046d3f1-fc06-43e9-8e56-d8dcf6329ed7.jpg?v=1717639871", "detail_url": "https://mostexpensivewatches.net/listing/h_6978334818379", "buy_url": "https://mostexpensivewatches.net/out/h_6978334818379", "available": false}], "auction_lots": [{"slug": "panerai-3646-2013", "brand": "Panerai", "reference": "3646", "model": "Radiomir", "case_material": "Stainless Steel", "hammer_usd": 161000, "year_sold": 2013, "venue": "Christie's New York", "lot_summary": "A rare Type C example with a 'Radiomir Panerai' dial and a caseback engraved with 'Xa. FLOTMAS No. 048', indicating use by the Decima Flottiglia MAS.", "source_url": "https://www.christies.com/en/lot/lot-5753813", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/panerai-3646-2013"}, {"slug": "panerai-3646-2014", "brand": "Panerai", "reference": "3646", "model": "Radiomir 'Kampfschwimmer'", "case_material": "Stainless Steel", "hammer_usd": 118055, "year_sold": 2014, "venue": "Christie's Geneva", "lot_summary": "A Type C vintage Radiomir with a first-generation sandwich dial that has developed a sought-after dark red patina.", "source_url": "https://www.christies.com/en/lot/lot-5792501", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/panerai-3646-2014"}, {"slug": "panerai-3646-2017", "brand": "Panerai", "reference": "3646", "model": "Radiomir Type C 'Helmut Rösel'", "case_material": "Stainless Steel", "hammer_usd": 112000, "year_sold": 2017, "venue": "Phillips Geneva", "lot_summary": "A historically significant piece formerly owned by German combat swimmer Helmut Rösel, complete with original documentation.", "source_url": "https://www.phillips.com/detail/panerai/CH080117/208", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/panerai-3646-2017"}, {"slug": "panerai-3646-2016", "brand": "Panerai", "reference": "3646", "model": "Radiomir Type E 'California Dial'", "case_material": "Stainless Steel", "hammer_usd": 108000, "year_sold": 2016, "venue": "Phillips Geneva", "lot_summary": "A pristine and historically important example with an anonymous 'California' dial, manufactured by Rolex for Panerai.", "source_url": "https://www.phillips.com/detail/panerai/CH080116/122", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/panerai-3646-2016"}, {"slug": "panerai-3646-2022", "brand": "Panerai", "reference": "3646", "model": "Error Proof California Dial", "case_material": "Stainless Steel", "hammer_usd": 97000, "year_sold": 2022, "venue": "Phillips Geneva", "lot_summary": "An extremely rare water-resistant diver's watch from 1944 with a black 'Error Proof' dial and bullet-proof originality.", "source_url": "https://www.phillips.com/detail/panerai/CH080122/118", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/panerai-3646-2022"}, {"slug": "panerai-3646-2018", "brand": "Panerai", "reference": "3646", "model": "Radiomir Type D 'Kampfschwimmer'", "case_material": "Stainless Steel", "hammer_usd": 85000, "year_sold": 2018, "venue": "Phillips Geneva", "lot_summary": "A rare 'Kampfschwimmer' watch with an anonymous sandwich dial and original leather strap, used by WWII frogmen.", "source_url": "https://www.phillips.com/detail/panerai/CH080118/213", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/panerai-3646-2018"}]}