{"listing": {"id": "h_6999021584459", "title": "Zenith Zenith Chronomaster Open 03.20416.4061/51.M20", "brand": "Zenith", "model": "Zenith Chronomaster Open 03.20416.4061/51.M20", "reference": "20416.4061/51", "price_usd": 4750.0, "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/files/Zenith-Chronomaster-03-20416-4061-51-M20-10-10-ZEN-6MSHP8-b84bc2d1f969.jpg?v=1723244486", "detail_url": "https://mostexpensivewatches.net/listing/h_6999021584459", "buy_url": "https://mostexpensivewatches.net/out/h_6999021584459", "available": false}, "lang": "en", "url": "https://mostexpensivewatches.net/listing/h_6999021584459", "alternatives_url": "https://mostexpensivewatches.net/api/v1/listing/h_6999021584459/alternatives", "lower_priced": [], "similar_listings": [], "cohort": {"count": 1, "median": 4750.0, "low": 4750.0, "high": 4750.0, "brands": 1, "merchants": 1, "listing_price": 4750.0, "position": "median", "delta_vs_median_pct": 0.0}, "reference": {"slug": "zenith-65", "ref": "65", "brand": "Zenith", "model": "El Primero A386 Only Watch 2019", "url": "https://mostexpensivewatches.net/reference/zenith-65", "alternatives_url": "https://mostexpensivewatches.net/api/alternatives/zenith-65"}, "cross_reference_alternatives": [{"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": 20, "why_compare": "Same zenith collector universe; shared search intent: 18k, gold; similar gold case profile.", "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-g583", "brand": "Zenith", "ref": "G583", "model": "El Primero", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/zenith-g583", "description": "The Zenith El Primero G583 was produced between 1969 and 1972 as part of the initial launch of the El Primero high-beat automatic chronograph movement. This reference features a 37mm 18k yellow gold case with a round profile and pump pushers, distinguishing it from the angular steel A384 and A385 models of the same era. Collectors prioritize the G583 for its caliber 3019 PHC movement and its relative scarcity, as production was limited to approximately 600 units. The dial typically features a gold sunburst finish with black sub-dials and a tachymeter scale. On the secondary market, the G583 generally commands prices between $15,000 and $25,000 depending on the presence of the original gold ladder bracelet. A notable production detail is that the G583 represents one of the few precious metal executions from the original 1969 El Primero catalog."}, "score": 20, "why_compare": "Same zenith collector universe; shared search intent: 18k, gold; similar gold case profile.", "listing_stats": {"count": 52, "median": 6750.0, "low": 3150.0, "high": 23800.0, "brands": 1, "merchants": 5}, "top_listing": {"id": "h_7450482114647", "title": "Zenith Zenith Chronomaster El Primero 1969 'Rolling Stones Edition'", "brand": "Zenith", "model": "Zenith Chronomaster El Primero 1969 'Rolling Stones Edition'", "reference": "1969", "price_usd": 8450.0, "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/AS10794_40992444_ZENITH_ELPRIMEROCHRONOMASTER1969_96.2260.4061-21.R575-5.jpg?v=1753224324", "detail_url": "https://mostexpensivewatches.net/listing/h_7450482114647", "buy_url": "https://mostexpensivewatches.net/out/h_7450482114647", "available": true}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/zenith-g583", "alternatives_url": "https://mostexpensivewatches.net/alternatives/zenith-g583"}, {"reference": {"slug": "zenith-g381", "brand": "Zenith", "ref": "G381", "model": "El Primero Gold", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/zenith-g381", "description": "The Zenith El Primero G381 was produced between 1969 and 1972, with a total production run of 700 units. This reference is the 18k yellow gold counterpart to the steel A386, sharing the same 38mm round case architecture and the high-frequency caliber 3019 PHC automatic chronograph movement. Collectors prioritize the G381 for its historical status as one of the three original El Primero launch models and its distinct dial configuration, which features white sub-dials on a white lacquered background rather than the tri-color registers found on the steel version. On the secondary market, prices typically range from $20,000 to $40,000 depending on the presence of the original Gay Frères gold ladder bracelet. A notable production detail is that early examples feature a \"star\" logo on the crown and caseback, which transitioned to the \"NATO\" star during the later production years."}, "score": 20, "why_compare": "Same zenith collector universe; shared search intent: 18k, gold; similar gold case profile.", "listing_stats": {"count": 52, "median": 6750.0, "low": 3150.0, "high": 23800.0, "brands": 1, "merchants": 5}, "top_listing": {"id": "h_7450482114647", "title": "Zenith Zenith Chronomaster El Primero 1969 'Rolling Stones Edition'", "brand": "Zenith", "model": "Zenith Chronomaster El Primero 1969 'Rolling Stones Edition'", "reference": "1969", "price_usd": 8450.0, "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/AS10794_40992444_ZENITH_ELPRIMEROCHRONOMASTER1969_96.2260.4061-21.R575-5.jpg?v=1753224324", "detail_url": "https://mostexpensivewatches.net/listing/h_7450482114647", "buy_url": "https://mostexpensivewatches.net/out/h_7450482114647", "available": true}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/zenith-g381", "alternatives_url": "https://mostexpensivewatches.net/alternatives/zenith-g381"}, {"reference": {"slug": "zenith-18", "brand": "Zenith", "ref": "18", "model": "Academy Force Constante Georges Favre-Jacot", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/zenith-18", "description": "Released in 2014 to commemorate Zenith’s 150th anniversary, the Zenith Academy Force Constante Georges Favre-Jacot (Reference 18.2210.4805/01.C713) was produced as a limited edition of 150 pieces in 18k pink gold. Collectors prioritize this reference for the manual-wind El Primero Calibre 4805, which integrates a fusée-and-chain transmission system designed to ensure constant force throughout the movement's 50-hour power reserve. The 45mm case features an open-dial architecture, exposing the chain mechanism between 10 and 2 o’clock and the high-frequency 36,000 vph escapement at 6 o’clock. On the secondary market, this model typically trades in the $45,000 to $65,000 range, representing a significant decrease from its original retail price of approximately $82,000. While the pink gold version is the primary reference, Zenith later released a titanium variant under the \"Academy Christophe Colomb\" lineage featuring similar constant-force technology but different case dimensions."}, "score": 18, "why_compare": "Same zenith collector universe; shared search intent: 18k, gold; similar gold case profile.", "listing_stats": {"count": 18, "median": 10400.0, "low": 6000.0, "high": 19900.0, "brands": 1, "merchants": 4}, "top_listing": {"id": "h_16001967522137", "title": "Zenith Zenith El-Primero Covergirl Chronograph ref. A3818", "brand": "Zenith", "model": "Zenith El-Primero Covergirl Chronograph ref. A3818", "reference": "W-3545", "price_usd": 19900.0, "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": "bulang-and-sons", "merchant_name": "Bulang & Sons", "image_url": "https://cdn.shopify.com/s/files/1/0961/8613/8969/files/W-3545ZenithElPrimeroCovergirlchronographrefA3818_380_1x1_931c2880-3c1e-49d1-aa21-087738a1a575.jpg?v=1766142528", "detail_url": "https://mostexpensivewatches.net/listing/h_16001967522137", "buy_url": "https://mostexpensivewatches.net/out/h_16001967522137", "available": false}, "auction_comp_count": 2, "review_url": "https://mostexpensivewatches.net/review/zenith-18", "alternatives_url": "https://mostexpensivewatches.net/alternatives/zenith-18"}, {"reference": {"slug": "zenith-a386", "brand": "Zenith", "ref": "A386", "model": "El Primero", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/zenith-a386", "description": "The Zenith El Primero A386 was produced between 1969 and approximately 1971, with an estimated total production of 2,500 units. Collectors prioritize this reference as the original housing for the Calibre 3019 PHC, one of the first integrated automatic chronograph movements operating at 36,000 vibrations per hour. The 38mm stainless steel case features a tri-color dial with overlapping sub-dials in silver, anthracite, and blue, a design distinct to this initial release. On the secondary market, prices typically range from $15,000 to over $25,000 depending on the presence of the original \"ladder\" bracelet manufactured by Gay Frères and the condition of the tritium lume. A notable production detail is the \"Mk 1\" dial variant, which lacks the \"36000 VpH\" text found on later iterations. In 2019, a unique platinum version created for Phillips auction house sold for 250,000 CHF, though steel examples remain the standard for vintage collectors."}, "score": 15, "why_compare": "Same zenith collector universe; shared search intent: a386, primero.", "listing_stats": {"count": 52, "median": 6750.0, "low": 3150.0, "high": 23800.0, "brands": 1, "merchants": 5}, "top_listing": {"id": "h_7450482114647", "title": "Zenith Zenith Chronomaster El Primero 1969 'Rolling Stones Edition'", "brand": "Zenith", "model": "Zenith Chronomaster El Primero 1969 'Rolling Stones Edition'", "reference": "1969", "price_usd": 8450.0, "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/AS10794_40992444_ZENITH_ELPRIMEROCHRONOMASTER1969_96.2260.4061-21.R575-5.jpg?v=1753224324", "detail_url": "https://mostexpensivewatches.net/listing/h_7450482114647", "buy_url": "https://mostexpensivewatches.net/out/h_7450482114647", "available": true}, "auction_comp_count": 6, "review_url": "https://mostexpensivewatches.net/review/zenith-a386", "alternatives_url": "https://mostexpensivewatches.net/alternatives/zenith-a386"}, {"reference": {"slug": "zenith-40", "brand": "Zenith", "ref": "40", "model": "El Primero A386 Unique Piece", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/zenith-40", "description": "The Zenith El Primero A386 Unique Piece in PT950 platinum was produced in 2019 to commemorate the 50th anniversary of the El Primero movement. This specific reference, designated 40.P386.400/57.C842, features a 38mm case and a unique lapis lazuli dial, distinguishing it from the standard tri-color sub-dial configurations of the original 1969 steel models. It houses the high-frequency Calibre 400 automatic chronograph movement. As a unique piece, it was created specifically for the Phillips Geneva Watch Auction: X, where it sold for 250,000 CHF. Because only one example exists, it does not have a standard secondary market price range; however, its valuation remains in the mid-six-figure bracket based on its singular auction history. The watch is notable for being the only vintage-style A386 ever officially produced by Zenith in platinum with a stone dial, and it includes a fifty-year international warranty."}, "score": 15, "why_compare": "Same zenith collector universe; shared search intent: a386, primero.", "listing_stats": {"count": 53, "median": 6500.0, "low": 3150.0, "high": 15000.0, "brands": 1, "merchants": 4}, "top_listing": {"id": "h_7200548290635", "title": "Zenith Chronomaster Original Triple Calendar Limited Edition For Hodinkee", "brand": "Zenith", "model": "Chronomaster Original Triple Calendar Limited Edition For Hodinkee", "reference": "03.3401.3610.21.C911", "price_usd": 13500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Meteorite", "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/files/Zenith-Soldier-Bracelet-Gray.jpg?v=1727369418", "detail_url": "https://mostexpensivewatches.net/listing/h_7200548290635", "buy_url": "https://mostexpensivewatches.net/out/h_7200548290635", "available": true}, "auction_comp_count": 10, "review_url": "https://mostexpensivewatches.net/review/zenith-40", "alternatives_url": "https://mostexpensivewatches.net/alternatives/zenith-40"}]}