{"query": "3646", "brand": null, "total": 2, "limit": 10, "matches": [{"slug": "heuer-3646", "brand": "Heuer", "ref": "3646", "model": "Autavia", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-3646", "description": "The Heuer Autavia reference 3646 is a manual-wind chronograph produced between approximately 1962 and 1968. Collectors prioritize this reference as part of the first-generation Autavia series, characterized by a 38mm stainless steel screw-back case and a rotating bezel. It utilizes the Valjoux 92 movement, a two-register caliber distinguished by its oscillating pinion design. Early executions are particularly sought after for their \"big subdial\" configuration and dauphine hands, while later versions transitioned to smaller registers and baton hands. Due to low production numbers compared to later Carrera models, the 3646 is considered rare. Current secondary market prices typically range from $15,000 to over $35,000 depending on the execution and bezel type. A notable variant is the \"Indianapolis Motor Speedway\" edition, which features the IMS logo on the dial and commands a significant premium at specialized auctions.", "score": 199}, {"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.", "score": 199}]}