{"listing": {"id": "h_6921800810571", "title": "Zenith Zenith El Primero Vintage 1970s A385", "brand": "Zenith", "model": "Zenith El Primero Vintage 1970s A385", "reference": "10-10-ZEN-KMHPQE", "price_usd": 7000.0, "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/Zenith-El-Primero-A385-10-10-ZEN-KMHPQE-a8a5b663c32e_12db7b9b-0ba7-4f44-8125-721df1405f31.jpg?v=1714340759", "detail_url": "https://mostexpensivewatches.net/listing/h_6921800810571", "buy_url": "https://mostexpensivewatches.net/out/h_6921800810571", "available": false}, "lang": "en", "url": "https://mostexpensivewatches.net/listing/h_6921800810571", "alternatives_url": "https://mostexpensivewatches.net/api/v1/listing/h_6921800810571/alternatives", "lower_priced": [], "similar_listings": [], "cohort": {"count": 1, "median": 7000.0, "low": 7000.0, "high": 7000.0, "brands": 1, "merchants": 1, "listing_price": 7000.0, "position": "median", "delta_vs_median_pct": 0.0}, "reference": {"slug": "zenith-04", "ref": "04", "brand": "Zenith", "model": "Defy Double Tourbillon Felipe Pantone Only Watch 2021", "url": "https://mostexpensivewatches.net/reference/zenith-04", "alternatives_url": "https://mostexpensivewatches.net/api/alternatives/zenith-04"}, "cross_reference_alternatives": [{"reference": {"slug": "hublot-419", "brand": "Hublot", "ref": "419", "model": "Big Bang Tourbillon Only Watch", "case_material": "Polished Sapphire", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-419", "description": "The Hublot Big Bang Tourbillon Only Watch 2021 (Reference 419.JX.0108.RT.OW21) is a unique piece produced specifically for the 2021 Only Watch charity auction. Collectors prioritize this reference for its transparent 45mm case constructed from polished sapphire and its orange-tinted sapphire components, including the bridges of the manufacture HUB6035 automatic tourbillon movement. The caliber features a micro-rotor visible at the 12 o’clock position and a power reserve of 72 hours. As a unique piece, it is not in serial production. While the retail estimate was significantly lower, the watch achieved a final hammer price of 320,000 CHF at the Christie’s Geneva auction in November 2021. On the secondary market, such unique sapphire tourbillons typically command prices in the mid-to-high six-figure range, though availability is restricted by its one-of-one status. This reference represents Hublot’s technical focus on material transparency and integrated movement architecture."}, "score": 17, "why_compare": "Shared search intent: only, sapphire; similar sapphire case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/hublot-419", "alternatives_url": "https://mostexpensivewatches.net/alternatives/hublot-419"}, {"reference": {"slug": "hublot-915", "brand": "Hublot", "ref": "915", "model": "MP-15 Takashi Murakami Tourbillon Only Watch", "case_material": "Polished Sapphire", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-915", "description": "The Hublot MP-15 Takashi Murakami Tourbillon Only Watch 2023 is a unique piece produced specifically for the 2023 Only Watch charity auction. This reference features the brand’s first central flying tourbillon, powered by the manual-wind caliber HUB9015 with a 150-hour power reserve. The 42mm case is constructed from polished clear sapphire, shaped into Murakami’s signature twelve-petaled flower motif. The dial is integrated into the movement architecture, surrounded by 444 gemstones including rubies, sapphires, and amethysts set into the petals. Collectors value this reference for its technical departure from standard Hublot layouts and its status as a one-of-one prototype for the subsequent limited production series. While the retail estimate was approximately $350,000 to $400,000, it sold at auction for 420,000 CHF. On the secondary market, unique Only Watch pieces typically command mid-to-high six-figure prices depending on private sale negotiations."}, "score": 17, "why_compare": "Shared search intent: only, sapphire; similar sapphire case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 2, "review_url": "https://mostexpensivewatches.net/review/hublot-915", "alternatives_url": "https://mostexpensivewatches.net/alternatives/hublot-915"}, {"reference": {"slug": "richard-mille-rm-56-02", "brand": "Richard Mille", "ref": "RM 56-02", "model": "Sapphire Tourbillon", "case_material": "Sapphire Crystal", "url": "https://mostexpensivewatches.net/reference/richard-mille-rm-56-02", "description": "The Richard Mille RM 56-02 Sapphire Tourbillon was released in 2014 as a limited edition of 10 pieces. This reference is distinguished by its tripartite case milled entirely from solid blocks of synthetic sapphire, a process requiring 960 hours of machining per case. It utilizes the manual-wind Caliber RM56-02, which features a baseplate crafted from grade 5 titanium suspended within the sapphire case by a functional 0.35mm cable-and-pulley system. This architecture creates a visual effect of the movement floating in space while providing enhanced shock resistance. Collectors value the reference for its transparency and its role in evolving the brand’s technical research into sapphire applications. On the secondary market, the RM 56-02 typically commands prices in the $3,500,000 to $4,500,000 range. A unique prototype version of this model was notably produced for the 2015 Only Watch charity auction."}, "score": 17, "why_compare": "Shared search intent: crystal, sapphire; similar sapphire case profile.", "listing_stats": {"count": 1, "median": 2200000.0, "low": 2200000.0, "high": 2200000.0, "brands": 1, "merchants": 1}, "top_listing": {"id": "h_8029481337154", "title": "Richard Mille 53-02 Tourbillon Sapphire", "brand": "Richard Mille", "model": "53-02 Tourbillon Sapphire", "reference": "LTINC202288", "price_usd": 2200000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 50.0, "movement": "Automatic", "complications": ["Tourbillon"], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/products/richard-mille-rm-53-02-tourbillon-sapphire-1222684736-800x1197_80567c2a-d272-481e-9692-800fe6d6efa2.jpg?v=1669756619", "detail_url": "https://mostexpensivewatches.net/listing/h_8029481337154", "buy_url": "https://mostexpensivewatches.net/out/h_8029481337154", "available": false}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/richard-mille-rm-56-02", "alternatives_url": "https://mostexpensivewatches.net/alternatives/richard-mille-rm-56-02"}, {"reference": {"slug": "richard-mille-rm056", "brand": "Richard Mille", "ref": "RM056", "model": "Felipe Massa Sapphire", "case_material": "Sapphire Crystal", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/richard-mille-rm056", "description": "The Richard Mille RM 056 Felipe Massa Sapphire was introduced in 2012 as a limited edition of five pieces to mark the conclusion of the brand’s initial ten-year partnership with the Formula 1 driver. Collectors prioritize this reference for its technical construction, featuring a tripartite case milled entirely from solid blocks of synthetic sapphire, a process requiring over 1,000 hours of machining per watch. It houses the manual-winding Caliber RMCC1, a split-seconds tourbillon movement with power reserve and torque indicators. Due to its extreme rarity and status as the brand’s first full-sapphire model, secondary market prices typically range from $3,000,000 to $5,000,000 depending on provenance. A notable production evolution followed in 2013 with the RM 56-01, which incorporated sapphire baseplates and bridges, further reducing the use of titanium in the movement architecture."}, "score": 13, "why_compare": "Shared search intent: crystal, felipe; similar sapphire case profile.", "listing_stats": {"count": 1, "median": 2207500.0, "low": 2207500.0, "high": 2207500.0, "brands": 1, "merchants": 1}, "top_listing": {"id": "h_8029493854530", "title": "Richard Mille 056 Jean Todt 50th Anniversary", "brand": "Richard Mille", "model": "056 Jean Todt 50th Anniversary", "reference": "056", "price_usd": 2207500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 70.0, "movement": "Automatic", "complications": [], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/products/richard-mille-rm-056-jean-todt-50th-anniversary-800x1023_9ac9f476-ff58-4abf-938a-16eb67a5f229.jpg?v=1669756751", "detail_url": "https://mostexpensivewatches.net/listing/h_8029493854530", "buy_url": "https://mostexpensivewatches.net/out/h_8029493854530", "available": false}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/richard-mille-rm056", "alternatives_url": "https://mostexpensivewatches.net/alternatives/richard-mille-rm056"}, {"reference": {"slug": "zenith-4002", "brand": "Zenith", "ref": "4002", "model": "Captain Chronograph Only Watch 2011", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/zenith-4002", "description": "The Zenith Captain Chronograph Only Watch 2011, reference 18.2111.4002/01.C708, is a unique piece produced specifically for the 2011 Only Watch charity auction. This model features a 42mm case constructed from 18k pink gold and is powered by the El Primero Calibre 4002, a high-frequency automatic movement operating at 36,000 vibrations per hour. The dial is silver-toned with a sunray pattern, distinguished by a specific \"Only Watch 2011\" inscription located at the 6 o'clock position. As a unique piece, it does not have a standard production run or a typical secondary market price range; however, it originally sold at auction for 20,000 CHF. While standard Captain Chronograph models in gold typically trade between $8,000 and $12,000, this specific reference remains a singular item in private hands. Its primary value to collectors lies in its unique provenance and the specific commemorative dial branding."}, "score": 13, "why_compare": "Same zenith collector universe; shared search intent: only, zenith.", "listing_stats": {"count": 14, "median": 9275.0, "low": 3800.0, "high": 15000.0, "brands": 1, "merchants": 2}, "top_listing": {"id": "h_8379639464115", "title": "Zenith Zenith DEFY Skyline C.X Ceramic Edition (Pre-owned)", "brand": "Zenith", "model": "Zenith DEFY Skyline C.X Ceramic Edition (Pre-owned)", "reference": "—", "price_usd": 15000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "High-Tech Ceramic", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Chronograph"], "merchant_slug": "collective-horology", "merchant_name": "Collective Horology", "image_url": "https://cdn.shopify.com/s/files/1/0559/0623/8643/files/PB210230-2.jpg?v=1763862204", "detail_url": "https://mostexpensivewatches.net/listing/h_8379639464115", "buy_url": "https://mostexpensivewatches.net/out/h_8379639464115", "available": false}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/zenith-4002", "alternatives_url": "https://mostexpensivewatches.net/alternatives/zenith-4002"}, {"reference": {"slug": "zenith-65", "brand": "Zenith", "ref": "65", "model": "El Primero A386 Only Watch 2019", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/zenith-65", "description": "The Zenith El Primero A386 Only Watch 2019 is a unique piece produced specifically for the 2019 Only Watch charity auction. This reference features a 38mm case constructed from 18k white gold, a material not used for the original 1969 A386 production. It houses the El Primero caliber 400, a high-frequency automatic integrated chronograph movement. The dial retains the signature tri-color sub-dial layout but replaces the standard blue register with a turquoise sub-dial at three o'clock, a color specific to the 2019 auction theme. Collectors value this reference for its status as a one-of-one production and its lifetime warranty and service package included by the manufacturer. At its original sale at Christie’s in November 2019, the watch realized a price of 75,000 CHF. Due to its unique nature, secondary market availability is non-existent, placing its theoretical value in the high five-figure to low six-figure range."}, "score": 13, "why_compare": "Same zenith collector universe; shared search intent: only, zenith.", "listing_stats": {"count": 11, "median": 9800.0, "low": 6950.0, "high": 15800.0, "brands": 1, "merchants": 2}, "top_listing": {"id": "h_6851997630539", "title": "Zenith Zenith Chronomaster Sport El Primero Yoshida Limited Edition 65.3101.3600", "brand": "Zenith", "model": "Zenith Chronomaster Sport El Primero Yoshida Limited Edition 65.3101.3600", "reference": "3101.3600", "price_usd": 15800.0, "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": "hodinkee", "merchant_name": "Hodinkee Shop", "image_url": "https://cdn.shopify.com/s/files/1/0146/0732/products/Zenith-Chronomaster-Sport-Yoshida-65-3104-3600-52-C920-10-10-ZEN-1GZ9BC-af0f98f89108_eb47b89d-9051-43c8-9815-f727378ab1ab.jpg?v=1699652543", "detail_url": "https://mostexpensivewatches.net/listing/h_6851997630539", "buy_url": "https://mostexpensivewatches.net/out/h_6851997630539", "available": false}, "auction_comp_count": 2, "review_url": "https://mostexpensivewatches.net/review/zenith-65", "alternatives_url": "https://mostexpensivewatches.net/alternatives/zenith-65"}]}