{"product_id":"case-662-omeag-seamaster-professional-300-blue-steel-ref-210-30-42-20-03-001","title":"Case #662 — Omega Seamaster Professional 300 (Blue-Steel) Ref. 210.30.42.20.03.001","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCase #662 — Omega Seamaster Professional 300 (Blue-Steel) Ref. 210.30.42.20.03.001\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eStatus:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Available\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eCondition:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Excellent Pre-Owned\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eScope:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Box, Papers, and Cards\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e🔎 Case Notes\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThere are few modern Omega sports watches more immediately recognizable than the blue Seamaster Diver 300M.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe polished blue ceramic dial carries the collection’s laser-engraved wave pattern, paired with a matching blue ceramic dive bezel, skeletonized hands, and the substantial stainless-steel bracelet that gives this configuration its full wrist presence.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAt 42 mm, it is unmistakably a modern sports watch, but the curved case architecture and articulated bracelet keep the proportions balanced. Underneath sits Omega’s Co-Axial Master Chronometer Calibre 8800, combining serious dive-watch capability with modern antimagnetic performance and a sapphire exhibition caseback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis example dates from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2024\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and presents in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eexcellent pre-owned condition\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. It includes its \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ebox, papers, and cards\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, is currently sized for approximately a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e7¾-inch wrist\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and remains within Omega’s five-year international factory warranty period, subject to the exact purchase date on the warranty card and Omega’s warranty terms.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e🕰️ The Evidence\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eReference:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 210.30.42.20.03.001\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eModel:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Seamaster Diver 300M\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eYear:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2024\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCase:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Stainless Steel\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCase Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 42 mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eThickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 13.6 mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eLug Width:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 20 mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eDial:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Polished Blue Ceramic with Laser-Engraved Wave Pattern\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCrystal:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Domed Sapphire with Anti-Reflective Treatment\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBezel:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Unidirectional Blue Ceramic with White Enamel Diving Scale\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCrown:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Screw-Down\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHelium Escape Valve:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Yes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCaseback:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Sapphire Exhibition\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMovement:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Omega Co-Axial Master Chronometer Calibre 8800\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMovement Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Automatic\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCertification:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e METAS Master Chronometer\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePower Reserve:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 55 Hours\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eAnti-Magnetism:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Resistant to Magnetic Fields up to 15,000 Gauss\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFunctions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Hours, Minutes, Central Seconds, Date\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eWater Resistance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 300 meters \/ 1,000 feet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBracelet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Stainless Steel\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBracelet Fit:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 7¾-inch wrist\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCondition:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Excellent Pre-Owned\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFactory Warranty:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Remaining Omega Factory Warranty, Subject to Exact 2024 Card Date\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eIncluded:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Box, Papers, and Cards\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e🌟 Collector Provenance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Diver 300M has been one of Omega’s defining sports-watch families since 1993, and this generation brought the model firmly into the modern Master Chronometer era.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe familiar ingredients remain: scalloped bezel, skeletonized hands, helium escape valve, steel bracelet, and unmistakable wave dial. But the materials and mechanics have moved forward substantially.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe dial and bezel are now ceramic, the movement is visible through a sapphire caseback, and the Calibre 8800 brings METAS certification and exceptional magnetic resistance to a design that remains immediately recognizable as a Seamaster.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e🌟 Technical Provenance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Calibre 8800 is central to what separates this generation from earlier Diver 300Ms.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt provides approximately 55 hours of power reserve and carries Master Chronometer certification, with testing covering the fully assembled watch rather than simply the uncased movement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe movement’s resistance to strong magnetic fields also removes one of the most common threats to mechanical-watch accuracy in everyday life.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCombined with a screw-down crown, helium escape valve, ceramic bezel, and 300-meter depth rating, the Seamaster remains a legitimate professional diver beneath the polished surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e🧾 From the Case File\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe full steel configuration gives the blue Seamaster considerably more presence than its rubber-strap counterpart.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe bracelet visually broadens the watch and provides a strong contrast against the deep blue ceramic dial and bezel, while the polished and brushed case surfaces give the watch enough refinement to move beyond strictly casual wear.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis particular example lands in the desirable portion of the secondary market: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2024 dated, excellent condition, BPC, generously sized, and still carrying meaningful Omega factory warranty coverage\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt offers most of what a buyer receives with a new Seamaster, without requiring a new-watch purchase.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e🗝️ BST Verdict\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe quintessential modern blue Seamaster.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe ceramic wave dial, matching bezel, full steel bracelet, Calibre 8800, and 300-meter capability make this one of Omega’s strongest everyday sports-watch packages.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCase 662 adds the details we want in a recent pre-owned example: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eexcellent condition, complete presentation, remaining factory warranty, and ample bracelet sizing\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e👉 Every case deserves a closer look.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Baker Street Timepieces","offers":[{"title":"Default Title","offer_id":58454956638511,"sku":null,"price":4350.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0948\/5359\/5439\/files\/BST_6475.jpg?v=1789172115","url":"https:\/\/bakerstreettimepieces.com\/products\/case-662-omeag-seamaster-professional-300-blue-steel-ref-210-30-42-20-03-001","provider":"Baker Street Timepieces","version":"1.0","type":"link"}