{"reference": {"slug": "longines-3474", "brand": "Longines", "ref": "3474", "model": "13ZN Non-Flyback Chronograph", "case_material": "18k Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/longines-3474", "description": "The Longines reference 3474 was produced during the late 1930s and 1940s, featuring the 13ZN manual-wind movement. While the 13ZN is widely recognized for its flyback complication, the reference 3474 is a rare non-flyback execution of the caliber. Collectors prioritize this reference for its 18k yellow gold stepped case, which typically measures approximately 32.5mm to 33mm, and its multi-scale dials often featuring tachymeter and telemeter tracks. The non-flyback variant is significantly rarer than standard 13ZN models, as the movement was modified to remove the permanent reset function. On the secondary market, these gold chronographs generally command prices between $15,000 and $30,000 depending on dial originality and case sharpness. A notable production detail is that many 3474 examples were delivered to the Italian market through the retailer Oltramare, often featuring distinctive sector or two-tone dial configurations that increase their valuation at auction."}, "lang": "it", "url": "https://mostexpensivewatches.net/it/alternatives/longines-3474", "reference_url": "https://mostexpensivewatches.net/it/reference/longines-3474", "review_url": "https://mostexpensivewatches.net/it/review/longines-3474", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "auction_comp_count": 1, "alternatives": [{"reference": {"slug": "longines-103", "brand": "Longines", "ref": "103", "model": "13ZN Pink Gold Chronograph", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/longines-103", "description": "The Longines reference 103, featuring the 13ZN caliber, was produced during the late 1930s and 1940s. Collectors prioritize this reference for its 18k pink gold construction and the inclusion of the 13ZN movement, which was the first chronograph caliber to feature a flyback function. The case typically measures 37mm to 38mm, featuring a stepped bezel and heavy lugs. Dial configurations often include multi-scale tachymeter and telemeter tracks in enamel or metallic finishes. Due to the limited production of oversized gold chronographs from this era, the reference 103 is considered rare. On the secondary market, these watches generally command prices in the mid-five-figure to low-six-figure range depending on condition and dial rarity. A notable 2015 auction result for a pink gold 13ZN with a sector dial reached approximately $100,000, illustrating the premium placed on well-preserved examples with original components."}, "score": 24, "why_compare": "Same longines collector universe; shared search intent: 13zn, 18k; similar gold case profile.", "listing_stats": {"count": 11, "median": 6500.0, "low": 4450.0, "high": 100000.0, "brands": 1, "merchants": 3}, "top_listing": {"id": "h_16063118279001", "title": "Longines Longines 13ZN Chronograph Sandwich Dial in 18k Yellow Gold", "brand": "Longines", "model": "Longines 13ZN Chronograph Sandwich Dial in 18k Yellow Gold", "reference": "W-3544", "price_usd": 100000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "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-3544Longines13ZNchronographSandwichdialin18kyellowgold_222_1x1_8399bbb4-9566-4893-adc9-b2c1bdb9e1c9.jpg?v=1768980927", "detail_url": "https://mostexpensivewatches.net/listing/h_16063118279001", "buy_url": "https://mostexpensivewatches.net/out/h_16063118279001", "available": true}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/it/review/longines-103", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/longines-103"}, {"reference": {"slug": "longines-13zn-vintage-chronograph-gold", "brand": "Longines", "ref": "13ZN", "model": "Vintage Chronograph 13ZN", "case_material": "18k Yellow Gold", "url": "https://mostexpensivewatches.net/reference/longines-13zn-vintage-chronograph-gold", "description": "The Longines 13ZN chronograph was produced from 1936 until approximately 1947. Collectors prioritize this reference for its 13ZN caliber, which was the first serially produced wristwatch movement to feature a flyback function. In 18k yellow gold, the watch typically features a multi-step bezel or a \"tre tacche\" case construction with a diameter ranging from 34mm to 38mm. Dial configurations often include tachymeter or telemeter scales in enamel or silvered finishes. Due to the movement's technical complexity and the brand's transition to outsourced calibers later in the century, these pieces are considered significant historical artifacts. Current secondary market prices for 18k yellow gold examples generally range from $25,000 to over $100,000 depending on case size and dial originality. A notable 1940s oversized 38mm yellow gold variant reached a hammer price of approximately $120,000 at a major 2022 auction."}, "score": 24, "why_compare": "Same longines collector universe; shared search intent: 13zn, 18k; similar gold case profile.", "listing_stats": {"count": 4, "median": 53475.0, "low": 6500.0, "high": 100000.0, "brands": 1, "merchants": 2}, "top_listing": {"id": "h_16063118279001", "title": "Longines Longines 13ZN Chronograph Sandwich Dial in 18k Yellow Gold", "brand": "Longines", "model": "Longines 13ZN Chronograph Sandwich Dial in 18k Yellow Gold", "reference": "W-3544", "price_usd": 100000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "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-3544Longines13ZNchronographSandwichdialin18kyellowgold_222_1x1_8399bbb4-9566-4893-adc9-b2c1bdb9e1c9.jpg?v=1768980927", "detail_url": "https://mostexpensivewatches.net/listing/h_16063118279001", "buy_url": "https://mostexpensivewatches.net/out/h_16063118279001", "available": true}, "auction_comp_count": 3, "review_url": "https://mostexpensivewatches.net/it/review/longines-13zn-vintage-chronograph-gold", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/longines-13zn-vintage-chronograph-gold"}, {"reference": {"slug": "longines-5009", "brand": "Longines", "ref": "5009", "model": "13ZN Flyback Chronograph", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/longines-5009", "description": "The Longines reference 5009 was produced during the 1940s and is no longer in production. Collectors prioritize this reference for its 37mm stainless steel \"Tre Tacche\" case, characterized by a three-notch screw-down caseback that provided enhanced water resistance for the period. It houses the manual-wind caliber 13ZN, a movement featuring an integrated flyback complication that allows the chronograph to be reset and restarted with a single pusher press. The dial typically features a two-register layout with a peripheral tachymeter or telemeter scale. Due to the combination of the oversized steel case and the technically significant movement, secondary market prices generally range from $40,000 to over $100,000 depending on condition and dial configuration. A notable production detail is the use of stepped bezels on certain 5009 examples, which significantly impacts valuation at international auctions where well-preserved specimens frequently exceed initial estimates."}, "score": 21, "why_compare": "Same longines collector universe; shared search intent: 13zn, chronograph.", "listing_stats": {"count": 6, "median": 6300.0, "low": 4950.0, "high": 7950.0, "brands": 1, "merchants": 3}, "top_listing": {"id": "h_7702233415789", "title": "Longines *Unpolished* Tropical 1946 Longines Flyback Chronograph 'Cal. 13ZN' (Ref. 4994) \"Presented From The Middle Atlantic Motorcycle Dealers Association\" W/ Extract From The Archive", "brand": "Longines", "model": "*Unpolished* Tropical 1946 Longines Flyback Chronograph 'Cal. 13ZN' (Ref. 4994) \"Presented From The Middle Atlantic Motorcycle Dealers Association\" W/ Extract From The Archive", "reference": "1946", "price_usd": 7950.0, "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": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img037910_de369b39-c193-42b2-9f14-1ce9afa1c203.jpg?v=1754686907", "detail_url": "https://mostexpensivewatches.net/listing/h_7702233415789", "buy_url": "https://mostexpensivewatches.net/out/h_7702233415789", "available": false}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/it/review/longines-5009", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/longines-5009"}, {"reference": {"slug": "longines-5415", "brand": "Longines", "ref": "5415", "model": "13ZN Flyback Chronograph", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/longines-5415", "description": "The Longines reference 5415 was produced during the 1940s and is no longer in production. Collectors prioritize this reference for its 37.5mm stainless steel step-bezel case and the inclusion of the caliber 13ZN, a manual-wind movement featuring an integrated flyback complication. The reference is noted for its waterproof-style case construction, often featuring round \"mushroom\" pushers and a screw-down case back. Dials typically feature multi-scale configurations, including tachymeter and telemeter tracks. Due to its rarity and technical significance, secondary market prices generally fall within the $60,000 to $120,000 range, though exceptional examples can exceed these figures. A notable auction result occurred in 2017 when a stainless steel 5415 with a silvered dial sold for approximately $140,000. Production numbers for this specific reference were limited, making well-preserved, unpolished steel examples difficult to source in the current vintage market."}, "score": 21, "why_compare": "Same longines collector universe; shared search intent: 13zn, chronograph.", "listing_stats": {"count": 6, "median": 6300.0, "low": 4950.0, "high": 7950.0, "brands": 1, "merchants": 3}, "top_listing": {"id": "h_7702233415789", "title": "Longines *Unpolished* Tropical 1946 Longines Flyback Chronograph 'Cal. 13ZN' (Ref. 4994) \"Presented From The Middle Atlantic Motorcycle Dealers Association\" W/ Extract From The Archive", "brand": "Longines", "model": "*Unpolished* Tropical 1946 Longines Flyback Chronograph 'Cal. 13ZN' (Ref. 4994) \"Presented From The Middle Atlantic Motorcycle Dealers Association\" W/ Extract From The Archive", "reference": "1946", "price_usd": 7950.0, "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": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img037910_de369b39-c193-42b2-9f14-1ce9afa1c203.jpg?v=1754686907", "detail_url": "https://mostexpensivewatches.net/listing/h_7702233415789", "buy_url": "https://mostexpensivewatches.net/out/h_7702233415789", "available": false}, "auction_comp_count": 2, "review_url": "https://mostexpensivewatches.net/it/review/longines-5415", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/longines-5415"}, {"reference": {"slug": "longines-6474", "brand": "Longines", "ref": "6474", "model": "30CH Flyback Chronograph", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/longines-6474", "description": "The Longines reference 6474 is a stainless steel flyback chronograph produced during the 1950s and early 1960s. It is powered by the in-house caliber 30CH, a manual-wind movement featuring a column wheel and flyback functionality, which collectors regard as the successor to the 13ZN. This reference is distinguished by its 37.5mm to 38mm waterproof-style case with a screw-down caseback and \"mushroom\" pump pushers. Dials typically feature a two-register layout with various scales, including tachymeter or telemeter tracks. Due to its larger proportions and technical movement, it is a primary target for vintage Longines enthusiasts. On the secondary market, prices generally range from $12,000 to $25,000 depending on condition and dial configuration. A notable production detail is the \"Sunray\" dial variant, which can command premiums at auction, with exceptional examples occasionally exceeding the $30,000 mark in specialized sales."}, "score": 19, "why_compare": "Same longines collector universe; shared search intent: chronograph, flyback.", "listing_stats": {"count": 6, "median": 6300.0, "low": 4950.0, "high": 7950.0, "brands": 1, "merchants": 3}, "top_listing": {"id": "h_7702233415789", "title": "Longines *Unpolished* Tropical 1946 Longines Flyback Chronograph 'Cal. 13ZN' (Ref. 4994) \"Presented From The Middle Atlantic Motorcycle Dealers Association\" W/ Extract From The Archive", "brand": "Longines", "model": "*Unpolished* Tropical 1946 Longines Flyback Chronograph 'Cal. 13ZN' (Ref. 4994) \"Presented From The Middle Atlantic Motorcycle Dealers Association\" W/ Extract From The Archive", "reference": "1946", "price_usd": 7950.0, "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": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img037910_de369b39-c193-42b2-9f14-1ce9afa1c203.jpg?v=1754686907", "detail_url": "https://mostexpensivewatches.net/listing/h_7702233415789", "buy_url": "https://mostexpensivewatches.net/out/h_7702233415789", "available": false}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/it/review/longines-6474", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/longines-6474"}, {"reference": {"slug": "longines-13", "brand": "Longines", "ref": "13", "model": "Single-Pusher Chronograph", "case_material": "Silver", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/longines-13", "description": "The Longines Single-Pusher Chronograph featuring the 13.33Z caliber was produced primarily between 1913 and the early 1930s. Collectors prioritize this reference as it houses the first purpose-built chronograph movement designed for a wristwatch, predating the 13ZN. The silver-cased variants often feature 35mm to 37mm dimensions with hinged \"officer\" casebacks and fixed wire lugs. Dial configurations typically include white enamel with red or black pulsations scales and Breguet numerals. Due to the movement's historical significance and the fragility of enamel dials, well-preserved examples are rare. On the secondary market, these watches generally command between $15,000 and $35,000 depending on case material and dial condition. A notable 1913 silver example sold at a Phillips auction for approximately $32,500, illustrating the premium placed on early production pieces with original components and intact enamel. This reference represents the transition from pocket watch conversions to dedicated wrist-worn chronographs."}, "score": 17, "why_compare": "Same longines collector universe; shared search intent: chronograph, longines.", "listing_stats": {"count": 5, "median": 9900.0, "low": 6500.0, "high": 100000.0, "brands": 1, "merchants": 2}, "top_listing": {"id": "h_16063118279001", "title": "Longines Longines 13ZN Chronograph Sandwich Dial in 18k Yellow Gold", "brand": "Longines", "model": "Longines 13ZN Chronograph Sandwich Dial in 18k Yellow Gold", "reference": "W-3544", "price_usd": 100000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "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-3544Longines13ZNchronographSandwichdialin18kyellowgold_222_1x1_8399bbb4-9566-4893-adc9-b2c1bdb9e1c9.jpg?v=1768980927", "detail_url": "https://mostexpensivewatches.net/listing/h_16063118279001", "buy_url": "https://mostexpensivewatches.net/out/h_16063118279001", "available": true}, "auction_comp_count": 4, "review_url": "https://mostexpensivewatches.net/it/review/longines-13", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/longines-13"}, {"reference": {"slug": "a-lange-s-hne-414", "brand": "A. Lange & Söhne", "ref": "414", "model": "1815 Chronograph “2022 Best of Show, Concorso d Este”", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/a-lange-s-hne-414", "description": "The A. Lange & Söhne 1815 Chronograph reference 414.049 is a unique piece produced in 2022 specifically for the winner of the \"Best of Show\" award at the Concorso d’Eleganza Villa d’Este. This 39.5mm 18k white gold timepiece features a solid pink gold dial with a hand-engraved hinged cuvette depicting the Concorso d’Eleganza coat of arms. It is powered by the manual-wind caliber L951.5, which includes a column-wheel control, a flyback function, and a 60-hour power reserve. Unlike standard production 1815 models, this reference was never available for retail purchase, making it a one-of-one edition. While standard 1815 chronographs trade between $50,000 and $70,000, this specific commemorative piece is valued significantly higher due to its unique provenance and configuration. Although it has not appeared at public auction recently, its rarity places its estimated secondary market value in the mid-to-high six-figure range."}, "score": 13, "why_compare": "Shared search intent: 18k, chronograph; similar gold case profile.", "listing_stats": {"count": 1, "median": 60000.0, "low": 60000.0, "high": 60000.0, "brands": 1, "merchants": 1}, "top_listing": {"id": "h_6766398111827", "title": "A. Lange & Söhne 1815 Chronograph Boutique Edition Ref. 414.026 | White Gold", "brand": "A. Lange & Söhne", "model": "1815 Chronograph Boutique Edition Ref. 414.026 | White Gold", "reference": "414.026", "price_usd": 60000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k White Gold", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Chronograph"], "merchant_slug": "a-collected-man", "merchant_name": "A Collected Man", "image_url": "https://cdn.shopify.com/s/files/1/0606/5325/products/A_Lange_Sohne1815Chronograph_Boutique_Edition_WhiteGold_A_Collected_Man_London_CSWWG_A1561_12.jpg?v=1652777630", "detail_url": "https://mostexpensivewatches.net/listing/h_6766398111827", "buy_url": "https://mostexpensivewatches.net/out/h_6766398111827", "available": false}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/it/review/a-lange-s-hne-414", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/a-lange-s-hne-414"}, {"reference": {"slug": "breguet-3237", "brand": "Breguet", "ref": "3237", "model": "Chronograph Lapis Lazuli", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-3237", "description": "The Breguet Classique Chronograph reference 3237 was produced from approximately 1991 through the early 2000s. This 36mm 18k yellow gold model is valued for its Lemania 2310-based movement, designated as the Caliber 533.1, which features high-level finishing and a column-wheel architecture. While standard 3237 models typically feature silvered guilloché dials, this specific variant utilizes a natural lapis lazuli stone dial, characterized by its deep blue color and pyrite inclusions. The case retains traditional Breguet design elements, including a coin-edge middle, straight lugs with screw-pins, and a sapphire display caseback. On the secondary market, standard 3237 models trade between $20,000 and $30,000, but stone-dial variants command a significant premium due to their rarity, often reaching the $50,000 to $80,000 range. A notable auction result occurred at Phillips in 2023, where a yellow gold lapis lazuli example realized approximately $82,000."}, "score": 13, "why_compare": "Shared search intent: 18k, chronograph; similar gold case profile.", "listing_stats": {"count": 4, "median": 21425.0, "low": 15850.0, "high": 28500.0, "brands": 1, "merchants": 1}, "top_listing": {"id": "h_7363882811475", "title": "Breguet Chronograph | 3237 | White Gold", "brand": "Breguet", "model": "Chronograph | 3237 | White Gold", "reference": "3237", "price_usd": 28500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k White Gold", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Chronograph"], "merchant_slug": "a-collected-man", "merchant_name": "A Collected Man", "image_url": "https://cdn.shopify.com/s/files/1/0606/5325/files/Breguet_Chronograph_3237_white_gold_A_Collected_Man_London_Thumbnail_blurred_00.jpg?v=1717494524", "detail_url": "https://mostexpensivewatches.net/listing/h_7363882811475", "buy_url": "https://mostexpensivewatches.net/out/h_7363882811475", "available": false}, "auction_comp_count": 2, "review_url": "https://mostexpensivewatches.net/it/review/breguet-3237", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/breguet-3237"}, {"reference": {"slug": "breguet-5237", "brand": "Breguet", "ref": "5237", "model": "Classique Chronograph", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-5237", "description": "The Breguet Classique Chronograph 5237 in 18k yellow gold was produced from the late 1990s through the mid-2000s and is now discontinued. Collectors prioritize this reference for its Lemania-based caliber 2310, a column-wheel movement finished to high standards with a swan-neck regulator. The 38mm case features the brand’s signature straight lugs and a coin-edge profile. The solid gold dial is decorated with hand-turned engine-guilloché patterns, including clous de Paris and grain d'orge, paired with blued steel pomme hands. On the secondary market, this reference typically trades between $22,000 and $30,000 depending on the presence of original accessories. A notable production detail is that the 5237 succeeded the 3237, increasing the case diameter from 36mm to 38mm to accommodate modern preferences while maintaining the traditional aesthetic established during the Daniel Roth era of the brand."}, "score": 13, "why_compare": "Shared search intent: 18k, chronograph; similar gold case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/it/review/breguet-5237", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/breguet-5237"}, {"reference": {"slug": "breguet-3610", "brand": "Breguet", "ref": "3610", "model": "Perpetual Calendar Chronograph", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-3610", "description": "The Breguet Perpetual Calendar Chronograph reference 3610 was produced during the 1990s and early 2000s, representing the neo-vintage era of the brand. Collectors target this reference for its 38mm 18k yellow gold case featuring traditional coin-edge fluting and straight lugs with screw-down bars. The watch utilizes the manual-wind Caliber 533.2, which is based on the Lemania 2310 ebauche, finished with hand-engraved bridges visible through a sapphire caseback. The solid gold dial is finished with hand-turned engine guilloché, featuring distinct patterns for the sub-dials and the main chapter ring. On the secondary market, this reference typically trades between $35,000 and $50,000 depending on the presence of original accessories. While the yellow gold version is the most common, a limited number of examples were produced in platinum, which command a significant premium at international auctions due to their lower production volume."}, "score": 13, "why_compare": "Shared search intent: 18k, chronograph; similar gold case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/it/review/breguet-3610", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/breguet-3610"}, {"reference": {"slug": "breguet-4538", "brand": "Breguet", "ref": "4538", "model": "Triple Calendar Chronograph", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-4538", "description": "The Breguet Reference 4538 is a triple calendar chronograph produced during the 1950s, with approximately 15 to 20 units manufactured in 18k yellow gold. Collectors prioritize this reference for its Valjoux 72C manual-wind movement and its 36mm three-body case featuring downturned lugs and rectangular pushers. The dial typically displays day and month apertures below the twelve o'clock position, a peripheral date scale, and three sub-dials for running seconds, 30-minute, and 12-hour counters. Due to its limited production run and historical significance as a mid-century complicated Breguet, the reference is rarely seen at public sale. Secondary market values generally fall within the mid-to-high six-figure range. A notable example sold at a 2016 Phillips auction for 389,000 CHF, highlighting the premium placed on original dial condition and the rarity of the yellow gold configuration compared to contemporary steel models."}, "score": 13, "why_compare": "Shared search intent: 18k, chronograph; similar gold case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/it/review/breguet-4538", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/breguet-4538"}, {"reference": {"slug": "hublot-1432xxx", "brand": "Hublot", "ref": "1432XXX", "model": "Big Bang Unico Chronograph Rainbow 42mm", "case_material": "18k Rose Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-1432xxx", "description": "The Hublot Big Bang Unico Chronograph Rainbow 42mm (Reference 441.OX.9910.LR.0999) entered production around 2019 and remains a centerpiece of the brand’s contemporary catalog. Collectors target this reference for its complex gem-setting, featuring 166 colored gemstones on the 18k King Gold case and 108 gemstones on the bezel, including rubies, pink sapphires, amethysts, and blue topazes. It utilizes the in-house HUB1280 Unico manufacture movement, a self-winding flyback chronograph with a 72-hour power reserve and a visible column wheel on the dial side. The 42mm diameter offers a more wearable profile than the original 45mm version. On the secondary market, this model typically trades between $65,000 and $85,000 depending on condition and completeness. A notable production detail is the \"King Gold\" alloy, which uses platinum to ensure the red hue remains stable over years of exposure to the elements."}, "score": 13, "why_compare": "Shared search intent: 18k, chronograph; similar gold case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/it/review/hublot-1432xxx", "alternatives_url": "https://mostexpensivewatches.net/it/alternatives/hublot-1432xxx"}]}