{"reference": {"slug": "heuer-3636", "brand": "Heuer", "ref": "3636", "model": "Autavia", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-3636", "description": "The Heuer Autavia reference 3646 (often associated with the 3636 designation in early catalogs) was produced during the 1960s as part of the first generation of the Autavia line. Collectors prioritize this reference for its screw-back stainless steel case and the manual-wind Valjoux 92 movement, a column-wheel caliber distinct from the three-register Valjoux 72. Key design elements include the \"Big Eye\" sub-dial configuration and the transition from dauphine hands to baton hands. Due to its limited production run and historical position as one of Heuer’s earliest purpose-built chronographs, secondary market prices typically range from $15,000 to $35,000 depending on the execution and bezel type. A notable variant is the \"Andretti,\" named after Mario Andretti, which features specific dial markings and can command higher premiums at auction, with exceptional examples occasionally exceeding the $50,000 mark."}, "lang": "pt", "url": "https://mostexpensivewatches.net/pt/alternatives/heuer-3636", "reference_url": "https://mostexpensivewatches.net/pt/reference/heuer-3636", "review_url": "https://mostexpensivewatches.net/pt/review/heuer-3636", "listing_stats": {"count": 24, "median": 7960.0, "low": 3500.0, "high": 45000.0, "brands": 1, "merchants": 4}, "auction_comp_count": 1, "alternatives": [{"reference": {"slug": "heuer-1163", "brand": "Heuer", "ref": "1163", "model": "Autavia", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-1163", "description": "The Heuer Autavia 1163 was produced between 1969 and 1972, representing the first generation of automatic chronographs from the brand. Collectors prioritize this reference for its use of the Calibre 11 and Calibre 12 movements, which feature a distinctive left-hand crown and right-hand pushers. The 42mm stainless steel case utilizes a tonneau shape with a rotating bezel and 20mm lugs. Key valuation factors include the presence of the \"Chrono-Matic\" dial text on early examples and the specific configuration of the fluted pushers. On the secondary market, prices typically range from $5,000 to $15,000 depending on condition and specific execution. A notable variant is the 1163 \"Jo Siffert,\" characterized by a white dial with blue accents and black registers, which frequently commands a significant premium at auction due to its association with the Swiss Formula One driver."}, "score": 20, "why_compare": "Same heuer collector universe; shared search intent: autavia, heuer; similar steel case profile.", "listing_stats": {"count": 24, "median": 7960.0, "low": 3500.0, "high": 45000.0, "brands": 1, "merchants": 4}, "top_listing": {"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}, "auction_comp_count": 4, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-1163", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-1163"}, {"reference": {"slug": "heuer-2446", "brand": "Heuer", "ref": "2446", "model": "Autavia", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-2446", "description": "The Heuer Autavia reference 2446 was produced between 1962 and approximately 1970. Collectors prioritize this reference for its use of the manual-wind Valjoux 72 movement and its screw-back stainless steel case, which preceded the later compressor-style cases. Early examples are distinguished by their \"Big Sub\" registers and dauphine hands, while later executions transitioned to stick hands and smaller sub-dials. The reference is historically significant as the first Autavia model released under Jack Heuer’s leadership. Current secondary market values typically range from $15,000 for later executions to over $100,000 for rare early variants. A notable production variant is the \"Jochen Rindt\" execution, named after the Formula One driver who wore the watch; a rare first-execution 2446 with large registers and a \"full lume\" dial achieved a record auction price of approximately $200,000 in 2017."}, "score": 20, "why_compare": "Same heuer collector universe; shared search intent: autavia, heuer; similar steel case profile.", "listing_stats": {"count": 25, "median": 8150.0, "low": 3500.0, "high": 45000.0, "brands": 1, "merchants": 4}, "top_listing": {"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}, "auction_comp_count": 8, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-2446", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-2446"}, {"reference": {"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": 20, "why_compare": "Same heuer collector universe; shared search intent: autavia, heuer; similar steel case profile.", "listing_stats": {"count": 24, "median": 7960.0, "low": 3500.0, "high": 45000.0, "brands": 1, "merchants": 4}, "top_listing": {"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}, "auction_comp_count": 2, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-3646", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-3646"}, {"reference": {"slug": "heuer-73463", "brand": "Heuer", "ref": "73463", "model": "Autavia", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-73463", "description": "The Heuer Autavia reference 73463 was produced during the early 1970s, specifically between 1972 and approximately 1975. This reference is distinguished by its manual-wind Valjoux 7734 movement, which includes a date complication at the 6 o’clock position. Collectors value the 73463 for its 42mm stainless steel \"compressor\" style case, which features a snap-on back rather than the screw-down design found on earlier automatic models. The reference is typically found with a black dial and white sub-dials or a silver dial with black sub-dials, often accented by orange chronograph hands. On the secondary market, these watches generally trade between $4,000 and $7,000 depending on condition and bezel type. A notable variant is the \"Orange Boy\" configuration, which features specific orange accents on the dial and hands, often commanding a premium at auction due to its distinct aesthetic and relative scarcity."}, "score": 20, "why_compare": "Same heuer collector universe; shared search intent: autavia, heuer; similar steel case profile.", "listing_stats": {"count": 26, "median": 8275.0, "low": 3500.0, "high": 45000.0, "brands": 1, "merchants": 4}, "top_listing": {"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}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-73463", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-73463"}, {"reference": {"slug": "heuer-1163t", "brand": "Heuer", "ref": "1163T", "model": "Autavia Albino", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-1163t", "description": "The Heuer Autavia 1163T \"Albino\" was produced for a brief period around 1971. This reference is distinguished by its white dial and white registers, a departure from the standard \"Siffert\" model which features black sub-dials. It utilizes the Calibre 12 automatic chronograph movement housed in a 42mm stainless steel cushion case with a notched bezel. Collectors value this variant due to its extreme rarity; it is estimated that fewer than ten authentic examples are publicly known to exist. Because of this scarcity, secondary market prices typically occupy the high-five-figure to low-six-figure range depending on condition and provenance. A notable auction result occurred in 2017 at the Heuer Parade sale, where an example achieved a hammer price of approximately 81,250 CHF. Verification of the serial number range, typically around 242xxx, is a critical factor for collectors evaluating the authenticity of this specific execution."}, "score": 20, "why_compare": "Same heuer collector universe; shared search intent: autavia, heuer; similar steel case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-1163t", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-1163t"}, {"reference": {"slug": "heuer-2446c", "brand": "Heuer", "ref": "2446C", "model": "Autavia GMT", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-2446c", "description": "The Heuer Autavia GMT reference 2446C was produced from approximately 1968 through the early 1970s. This reference is distinguished by its 40mm compressor-style snap-back case, which replaced the earlier screw-back designs to improve water resistance. Collectors prioritize this model for its Valjoux 724 movement, a modified version of the manual-wind Valjoux 72 featuring a GMT complication. The dial typically features three sub-registers and a red GMT hand, paired with a bidirectional rotating bezel available in \"Pepsi\" red and blue or \"Coke\" red and black color schemes. Current secondary market prices generally range from $12,000 to $20,000 depending on condition and bezel preservation. A notable production variant is the \"Mark 4\" dial, which features polished steel hour markers with luminous inserts. These watches are frequently found with \"Gay Frères\" beads-of-rice bracelets, which significantly impact the final valuation for collectors."}, "score": 20, "why_compare": "Same heuer collector universe; shared search intent: autavia, heuer; similar steel case profile.", "listing_stats": {"count": 24, "median": 7960.0, "low": 3500.0, "high": 45000.0, "brands": 1, "merchants": 4}, "top_listing": {"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}, "auction_comp_count": 3, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-2446c", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-2446c"}, {"reference": {"slug": "heuer-73443", "brand": "Heuer", "ref": "73443", "model": "Camaro", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-73443", "description": "The Heuer Camaro reference 73443 was produced between approximately 1970 and 1972, toward the end of the model’s production cycle. Collectors target this reference for its 37mm cushion-shaped stainless steel case and the inclusion of a date window at the 6 o’clock position, a complication powered by the manual-wind Valjoux 7734 movement. Unlike earlier three-register versions, the 73443 features a two-register layout. It is often found with a \"Panda\" or \"Reverse Panda\" dial configuration, featuring tachymeter scales and sunburst brushing on the case top. Due to a shorter production window compared to the Carrera or Monaco, the Camaro is considered relatively rare. Current secondary market prices typically range from $4,000 to $7,500 depending on condition and dial color. An exotic \"Orange Boy\" variant, featuring distinct orange accents on the hands and outer track, remains a highly sought-after version for specialized collectors."}, "score": 18, "why_compare": "Same heuer collector universe; shared search intent: heuer, stainless; similar steel case profile.", "listing_stats": {"count": 8, "median": 6375.0, "low": 4900.0, "high": 8500.0, "brands": 1, "merchants": 3}, "top_listing": {"id": "h_16302881014105", "title": "Heuer Heuer Camaro ref 7743 N Tachymeter Tropical Brown Dial", "brand": "Heuer", "model": "Heuer Camaro ref 7743 N Tachymeter Tropical Brown Dial", "reference": "7743", "price_usd": 6000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "bulang-and-sons", "merchant_name": "Bulang & Sons", "image_url": "https://cdn.shopify.com/s/files/1/0961/8613/8969/files/W-3768HeuerCamaroref7743NTachymeterBrowndial_007_1x1_c3620d02-a8c3-4226-b3a4-66ae1bf556d7.jpg?v=1778842851", "detail_url": "https://mostexpensivewatches.net/listing/h_16302881014105", "buy_url": "https://mostexpensivewatches.net/out/h_16302881014105", "available": true}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-73443", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-73443"}, {"reference": {"slug": "heuer-1553", "brand": "Heuer", "ref": "1553", "model": "Carrera", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-1553", "description": "The Heuer Carrera reference 1553 was produced during the early to mid-1970s as part of the second generation of automatic Carreras. Collectors value this reference for its use of the Calibre 15, a variation of the Calibre 12 that features an offset small seconds sub-dial at the 10 o'clock position, creating a distinctive asymmetrical dial layout. The 38.5mm stainless steel case utilizes a front-loading design with integrated lugs and a crown positioned on the left side. The 1553S variant features a silver dial with a single blue chronograph register, while the 1553N features a blue dial. On the secondary market, these watches typically trade between $4,000 and $7,000 depending on condition and original components. A notable production detail is the \"tool 107\" engraving on the caseback, indicating the specific tension ring system required for servicing the water-resistant assembly."}, "score": 18, "why_compare": "Same heuer collector universe; shared search intent: heuer, stainless; similar steel case profile.", "listing_stats": {"count": 32, "median": 5875.0, "low": 3650.0, "high": 13900.0, "brands": 2, "merchants": 4}, "top_listing": {"id": "h_7528253620311", "title": "Heuer Heuer Carrera 'Lemania'", "brand": "Heuer", "model": "Heuer Carrera 'Lemania'", "reference": "40992808", "price_usd": 5500.0, "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": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS11501_40992808_HEUER_CARRERA_510.523-5.jpg?v=1767627507", "detail_url": "https://mostexpensivewatches.net/listing/h_7528253620311", "buy_url": "https://mostexpensivewatches.net/out/h_7528253620311", "available": true}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-1553", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-1553"}, {"reference": {"slug": "heuer-2447", "brand": "Heuer", "ref": "2447", "model": "Carrera", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-2447", "description": "Produced between 1963 and approximately 1970, the Heuer Carrera reference 2447 is a manual-wind chronograph housed in a 36mm stainless steel case with signature faceted lugs. Collectors prioritize this reference for its use of the Valjoux 72 column-wheel movement and its minimalist dial design, which removed non-essential scales to improve legibility for drivers. The model is categorized by dial configurations, including the 2447N (black), 2447S (silver), and the 2447NST or 2447SNT featuring contrasting sub-dials. Current secondary market prices typically range from $12,000 to over $25,000 depending on condition and specific execution. A notable variant is the early \"first execution\" dial, distinguished by thinner hour markers and hands, which often commands a premium at auction. These watches represent the initial generation of the Carrera line, established before the transition to automatic movements in 1969."}, "score": 18, "why_compare": "Same heuer collector universe; shared search intent: heuer, stainless; similar steel case profile.", "listing_stats": {"count": 32, "median": 5875.0, "low": 3650.0, "high": 13900.0, "brands": 2, "merchants": 4}, "top_listing": {"id": "h_7528253620311", "title": "Heuer Heuer Carrera 'Lemania'", "brand": "Heuer", "model": "Heuer Carrera 'Lemania'", "reference": "40992808", "price_usd": 5500.0, "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": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS11501_40992808_HEUER_CARRERA_510.523-5.jpg?v=1767627507", "detail_url": "https://mostexpensivewatches.net/listing/h_7528253620311", "buy_url": "https://mostexpensivewatches.net/out/h_7528253620311", "available": true}, "auction_comp_count": 8, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-2447", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-2447"}, {"reference": {"slug": "heuer-2447s", "brand": "Heuer", "ref": "2447S", "model": "Carrera", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-2447s", "description": "The Heuer Carrera reference 2447S was produced from approximately 1963 until 1970. Collectors prioritize this reference as the definitive execution of Jack Heuer’s original vision for a legible racing chronograph, characterized by its 36mm stainless steel case with sharp, faceted lugs and a silver sunburst dial. It is powered by the manual-wind Valjoux 72 movement, a column-wheel caliber regarded for its durability and precision. The \"S\" designation signifies the monochromatic silver dial, which features three recessed registers and an inner tension ring with a 1/5th-second scale. Current secondary market prices typically range from $12,000 to $20,000 depending on condition and the presence of original components. A notable production variant is the \"first execution\" dial, which features thinner hour markers and hands without luminous inserts, often commanding a premium at auction due to its limited production window during the early 1960s."}, "score": 18, "why_compare": "Same heuer collector universe; shared search intent: heuer, stainless; similar steel case profile.", "listing_stats": {"count": 32, "median": 5875.0, "low": 3650.0, "high": 13900.0, "brands": 2, "merchants": 4}, "top_listing": {"id": "h_7528253620311", "title": "Heuer Heuer Carrera 'Lemania'", "brand": "Heuer", "model": "Heuer Carrera 'Lemania'", "reference": "40992808", "price_usd": 5500.0, "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": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS11501_40992808_HEUER_CARRERA_510.523-5.jpg?v=1767627507", "detail_url": "https://mostexpensivewatches.net/listing/h_7528253620311", "buy_url": "https://mostexpensivewatches.net/out/h_7528253620311", "available": true}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-2447s", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-2447s"}, {"reference": {"slug": "heuer-3647n", "brand": "Heuer", "ref": "3647N", "model": "Carrera", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-3647n", "description": "The Heuer Carrera reference 3647N was produced during the 1960s, specifically between approximately 1963 and 1970. Collectors prioritize this reference for its minimalist two-register layout and the manual-wind Valjoux 92 movement, which utilizes a column-wheel mechanism. The \"N\" designation signifies a black (noir) dial, which is rarer than the silver 3647S variant. The 35mm stainless steel case features the signature sharp, faceted lugs designed by Jack Heuer to improve legibility and durability. On the secondary market, prices typically range from $8,000 to $15,000 depending on the presence of the original \"Sunray\" dial finish and the condition of the tritium luminous plots. A notable production detail is the transition from early dials featuring only the Heuer shield to later versions that include the \"Carrera\" name, with the early \"unnamed\" dials often commanding a premium at auction."}, "score": 18, "why_compare": "Same heuer collector universe; shared search intent: heuer, stainless; similar steel case profile.", "listing_stats": {"count": 32, "median": 5875.0, "low": 3650.0, "high": 13900.0, "brands": 2, "merchants": 4}, "top_listing": {"id": "h_7528253620311", "title": "Heuer Heuer Carrera 'Lemania'", "brand": "Heuer", "model": "Heuer Carrera 'Lemania'", "reference": "40992808", "price_usd": 5500.0, "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": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS11501_40992808_HEUER_CARRERA_510.523-5.jpg?v=1767627507", "detail_url": "https://mostexpensivewatches.net/listing/h_7528253620311", "buy_url": "https://mostexpensivewatches.net/out/h_7528253620311", "available": true}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-3647n", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-3647n"}, {"reference": {"slug": "heuer-2447t", "brand": "Heuer", "ref": "2447T", "model": "Carrera 12", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/heuer-2447t", "description": "The Heuer Carrera 12 reference 2447T was produced from approximately 1963 through 1970. Collectors prioritize this reference for its three-register layout and the inclusion of a tachymeter scale printed on the outer edge of the dial, which distinguishes it from the cleaner 2447N or 2447S models. The watch features a 36mm stainless steel case with sharp, angular lugs and is powered by the manual-wind Valjoux 72 movement, a caliber noted for its reliability and historical significance in mid-century chronographs. Current secondary market prices typically range from $12,000 to $20,000 depending on the condition of the dial and the sharpness of the case edges. A notable production detail is the transition from \"Swiss\" only dials to \"T Swiss\" markings, indicating the use of tritium. Early executions featuring \"eggshell\" white dials and thin tension rings are particularly sought after at auction."}, "score": 18, "why_compare": "Same heuer collector universe; shared search intent: heuer, stainless; similar steel case profile.", "listing_stats": {"count": 32, "median": 5875.0, "low": 3650.0, "high": 13900.0, "brands": 2, "merchants": 4}, "top_listing": {"id": "h_7528253620311", "title": "Heuer Heuer Carrera 'Lemania'", "brand": "Heuer", "model": "Heuer Carrera 'Lemania'", "reference": "40992808", "price_usd": 5500.0, "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": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS11501_40992808_HEUER_CARRERA_510.523-5.jpg?v=1767627507", "detail_url": "https://mostexpensivewatches.net/listing/h_7528253620311", "buy_url": "https://mostexpensivewatches.net/out/h_7528253620311", "available": true}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/pt/review/heuer-2447t", "alternatives_url": "https://mostexpensivewatches.net/pt/alternatives/heuer-2447t"}]}