{"reference": {"slug": "omega-ot", "brand": "Omega", "ref": "OT", "model": "Seamaster", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/omega-ot", "description": "The Omega Seamaster OT 2520, produced during the early 1950s, represents a high-end execution of the brand’s early water-resistant line. Collectors prioritize this reference for its heavy 18k yellow gold construction and the inclusion of the Calibre 352 or 354 \"bumper\" automatic chronometer movements. Key aesthetic features often include \"clous de Paris\" or waffle-textured dials, applied gold arrowhead markers, and substantial faceted lugs. Because these solid gold variants were produced in significantly lower volumes than their steel counterparts, they occupy a specialized niche in vintage Omega collecting. Current secondary market prices typically range from $4,000 to $9,000 depending on the dial condition and case sharpness. A notable production detail is the \"OT\" designation itself, which Omega used in its internal coding to signify a solid 18k gold case, distinguishing it from the gold-capped \"KO\" or \"GX\" variants of the same era."}, "listing_stats": {"count": 622, "median": 6865.0, "low": 3000.0, "high": 163680.0, "brands": 1, "merchants": 6}, "listings": [{"id": "h_8029360587074", "title": "OMEGA De Ville Ladymatic Omega Co-Axial - 34 mm White Gold Case - Diamond Bezel - White Pearled Mother-Of-Pearl Diamond Dial - 425.65.34.20.55.013", "brand": "OMEGA", "model": "De Ville Ladymatic Omega Co-Axial - 34 mm White Gold Case - Diamond Bezel - White Pearled Mother-Of-Pearl Diamond Dial - 425.65.34.20.55.013", "reference": "425.65", "price_usd": 163680.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k White Gold", "case_size_mm": 34.0, "movement": "Automatic", "complications": ["Chronograph"], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/products/42565342055013.jpg?v=1669755341", "detail_url": "https://mostexpensivewatches.net/listing/h_8029360587074", "buy_url": "https://mostexpensivewatches.net/out/h_8029360587074", "available": true}, {"id": "h_8029347938626", "title": "OMEGA Ladies Constellation Luxury Edition Watch - 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