{"reference": {"slug": "tudor-7031", "brand": "Tudor", "ref": "7031", "model": "Oysterdate", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/tudor-7031", "description": "The Tudor Oysterdate reference 7031 was produced between 1970 and 1971 as part of the brand’s inaugural chronograph series. Collectors prioritize this reference for its 40mm steel case, Valjoux 7734 manual-wind movement, and the \"Home Plate\" dial configuration, characterized by pentagonal luminous hour markers. Unlike its sibling reference 7032, the 7031 features a black acrylic tachymeter bezel rather than a steel one. Due to a production run lasting only approximately two years, the 7031 is rare on the secondary market. Current market valuations typically range from $35,000 to $60,000 depending on the presence of the original \"Cyclops\" crystal and the condition of the dial’s orange accents. A notable variant includes the \"grey\" dial with black sub-dials. In 2023, well-preserved examples with original boxes and papers have commanded prices at the upper end of this bracket at major auction houses."}, "listing_stats": {"count": 17, "median": 6300.0, "low": 3150.0, "high": 44000.0, "brands": 1, "merchants": 4}, "listings": [{"id": "h_15751417495897", "title": "Tudor Tudor Home Plate Chronograph 7031", "brand": "Tudor", "model": "Tudor Home Plate Chronograph 7031", "reference": "7031", "price_usd": 44000.0, "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-904TudorHomeplateref7031_0_01.jpg?v=1756206996", "detail_url": "https://mostexpensivewatches.net/listing/h_15751417495897", "buy_url": "https://mostexpensivewatches.net/out/h_15751417495897", "available": false}, {"id": "h_15751404355929", "title": "Tudor Tudor Oysterdate Chronograph Monte Carlo Big Block 94200", "brand": "Tudor", "model": "Tudor Oysterdate Chronograph Monte Carlo Big Block 94200", "reference": "94200", "price_usd": 13250.0, "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-1071-Tudor-Monte-Carlo-ref-94200-Black-Dial_001-2.jpg?v=1756206709", "detail_url": "https://mostexpensivewatches.net/listing/h_15751404355929", "buy_url": "https://mostexpensivewatches.net/out/h_15751404355929", "available": false}, {"id": "h_8240926261427", "title": "Tudor Tudor Black Bay 58 \"Pirate\" Apple Employee Edition (Pre-owned)", "brand": "Tudor", "model": "Tudor Black Bay 58 \"Pirate\" Apple Employee Edition (Pre-owned)", "reference": "—", "price_usd": 8950.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "collective-horology", "merchant_name": "Collective Horology", "image_url": "https://cdn.shopify.com/s/files/1/0559/0623/8643/files/P4244762.jpg?v=1745548212", "detail_url": "https://mostexpensivewatches.net/listing/h_8240926261427", "buy_url": "https://mostexpensivewatches.net/out/h_8240926261427", "available": false}, {"id": "h_15751470907737", "title": "Tudor Tudor Oysterdate Chronograph Big Block 79180 Full Set", "brand": "Tudor", "model": "Tudor Oysterdate Chronograph Big Block 79180 Full Set", "reference": "79180", "price_usd": 8300.0, "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-658_Tudor_79180_Big_Block_full_set_01.jpg?v=1756208372", "detail_url": "https://mostexpensivewatches.net/listing/h_15751470907737", "buy_url": "https://mostexpensivewatches.net/out/h_15751470907737", "available": false}, {"id": "h_15751472382297", "title": "Tudor Tudor Oysterdate Chronograph Big Block 79170", "brand": "Tudor", "model": "Tudor Oysterdate Chronograph Big Block 79170", "reference": "79170", "price_usd": 7700.0, "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-632_TUDOR_BIG_BLOCK_01.jpg?v=1756208399", 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"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-616_TUDOR_BIG_BLOCK_79170_02.jpg?v=1756208430", "detail_url": "https://mostexpensivewatches.net/listing/h_15751473922393", "buy_url": "https://mostexpensivewatches.net/out/h_15751473922393", "available": false}, {"id": "h_15751431160153", "title": "Tudor Tudor Oysterdate Chronograph Big Block Black Dial 79180", "brand": "Tudor", "model": "Tudor Oysterdate Chronograph Big Block Black Dial 79180", "reference": "79180", "price_usd": 6300.0, "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-728_Tudor_Oysterdate_Chronograph_Big_Block_Black_Dial_79180_01.jpg?v=1756207287", "detail_url": "https://mostexpensivewatches.net/listing/h_15751431160153", "buy_url": "https://mostexpensivewatches.net/out/h_15751431160153", "available": false}, {"id": "h_15751375749465", "title": "Tudor Tudor Oysterdate Big Block Panda Dial Ref 79180", "brand": "Tudor", "model": "Tudor Oysterdate Big Block Panda Dial Ref 79180", "reference": "79180", "price_usd": 5900.0, "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-1452Tudor79180BigBlock01B.jpg?v=1756206097", "detail_url": "https://mostexpensivewatches.net/listing/h_15751375749465", "buy_url": "https://mostexpensivewatches.net/out/h_15751375749465", "available": false}, {"id": "h_6910784897099", "title": "Tudor Tudor Oysterdate Big Block Chronograph 79160", "brand": "Tudor", "model": "Tudor Oysterdate Big Block Chronograph 79160", "reference": "79160", "price_usd": 5600.0, "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/Tudor-Big-Block-79160-10-10-TUD-QYA0DE-680c8999df7e_f3eda1b6-5718-45c7-91c1-43363acda148.jpg?v=1715643594", "detail_url": "https://mostexpensivewatches.net/listing/h_6910784897099", "buy_url": "https://mostexpensivewatches.net/out/h_6910784897099", "available": false}, {"id": "h_15751381942617", "title": "Tudor Tudor Tiger Oysterdate Chronograph Small Block 79280P", "brand": "Tudor", "model": "Tudor Tiger Oysterdate Chronograph Small Block 79280P", "reference": "79280P", "price_usd": 4500.0, "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-1339TudorSmallBlockTigerBlueDialref79280p_009_1x1_3f11b33b-8bf7-4796-8f0e-e550890c7710.jpg?v=1756206224", "detail_url": "https://mostexpensivewatches.net/listing/h_15751381942617", "buy_url": "https://mostexpensivewatches.net/out/h_15751381942617", "available": false}, {"id": "h_7292335620205", "title": "Tudor *Unpolished* 1984 Tudor Prince Oysterdate \"Jumbo\" (Ref. 74100) Silver Dial W/ Full Set", "brand": "Tudor", "model": "*Unpolished* 1984 Tudor Prince Oysterdate \"Jumbo\" (Ref. 74100) Silver Dial W/ Full Set", "reference": "74100", "price_usd": 3850.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 38.0, "movement": "Automatic", "complications": [], "merchant_slug": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img026513_71c839ed-4185-4fa0-9d6f-eca4d5ae483d.jpg?v=1712709617", "detail_url": "https://mostexpensivewatches.net/listing/h_7292335620205", "buy_url": "https://mostexpensivewatches.net/out/h_7292335620205", "available": false}, {"id": "h_15751347077465", "title": "Tudor Tudor Prince Oysterdate 9121/0 Burgundy Dial with Papers", "brand": "Tudor", "model": "Tudor Prince Oysterdate 9121/0 Burgundy Dial with Papers", "reference": "9121/0", "price_usd": 3250.0, "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-1753TudorPrinceOysterdateref91210_012_1x1_37ee1fa2-6d02-453a-9abe-06d5718dc001.jpg?v=1756205485", "detail_url": "https://mostexpensivewatches.net/listing/h_15751347077465", "buy_url": "https://mostexpensivewatches.net/out/h_15751347077465", "available": false}, {"id": "h_7101326688365", "title": "Tudor 1979 Tudor Prince Oysterdate \"Jumbo\" (Ref. 90800) Silver Dial", "brand": "Tudor", "model": "1979 Tudor Prince Oysterdate \"Jumbo\" (Ref. 90800) Silver Dial", "reference": "90800", "price_usd": 3200.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 38.0, "movement": "Automatic", "complications": [], "merchant_slug": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img021704.jpg?v=1696641435", "detail_url": "https://mostexpensivewatches.net/listing/h_7101326688365", "buy_url": "https://mostexpensivewatches.net/out/h_7101326688365", "available": false}, {"id": "h_8062614732909", "title": "Tudor 1968 Tudor Prince Oysterdate (Ref. 7966/0) White \"Railroad\" Dial", "brand": "Tudor", "model": "1968 Tudor Prince Oysterdate (Ref. 7966/0) White \"Railroad\" Dial", "reference": "7966/0", "price_usd": 3150.0, "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/Img043223copy2_4ab31b62-f5a0-435a-87fa-9a558d188b7c.jpg?v=1776722283", "detail_url": "https://mostexpensivewatches.net/listing/h_8062614732909", "buy_url": "https://mostexpensivewatches.net/out/h_8062614732909", "available": false}, {"id": "h_6701524090989", "title": "Tudor 1990 Tudor Prince Oysterdate (Ref. 74010) Silver Linen Dial W/ Guarantee Paper", "brand": "Tudor", "model": "1990 Tudor Prince Oysterdate (Ref. 74010) Silver Linen Dial W/ Guarantee Paper", "reference": "74010", "price_usd": 3150.0, "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/products/DSC03643_58f725a7-f579-45ba-bb06-bdb21585f8ff.jpg?v=1641513495", "detail_url": "https://mostexpensivewatches.net/listing/h_6701524090989", "buy_url": "https://mostexpensivewatches.net/out/h_6701524090989", "available": false}], "auction_lots": [{"slug": "tudor-7031-0-home-plate", "brand": "Tudor", "reference": "7031/0", "model": "Oysterdate 'Home Plate'", "case_material": "Stainless Steel", "hammer_usd": 100000, "year_sold": 2021, "venue": "Sotheby's Geneva", "lot_summary": "The first chronograph ever produced by Tudor, nicknamed for its pentagonal hour markers that resemble a baseball home plate. It features the Valjoux 7734 movement.", "url": "https://mostexpensivewatches.net/auctions/tudor-7031-0-home-plate"}, {"slug": "tudor-7031-0-2012", "brand": "Tudor", "reference": "7031/0", "model": "Oysterdate 'Monte Carlo'", "case_material": "Stainless Steel", "hammer_usd": 18550, "year_sold": 2012, "venue": "Sotheby's Geneva", "lot_summary": "A first-generation Tudor chronograph featuring the iconic 'Home Plate' dial with orange accents and a black acrylic tachymeter bezel.", "source_url": "https://www.sothebys.com/en/auctions/ecatalogue/2012/important-watches-ge1204/lot.38.html", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/tudor-7031-0-2012"}, {"slug": "tudor-7031-0-2010", "brand": "Tudor", "reference": "7031/0", "model": "Oysterdate Prince", "case_material": "Stainless Steel", "hammer_usd": 12820, "year_sold": 2010, "venue": "Bonhams Hong Kong", "lot_summary": "A fine and rare manual wind chronograph with a black acrylic tachymeter bezel and 'Monte Carlo' dial.", "source_url": "https://www.bonhams.com/auctions/18442/lot/1038/", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/tudor-7031-0-2010"}]}