{"product_id":"case-637-omega-seamaster-professional-300-blue-steel-ref-210-30-42-20-03-001","title":"Case #637 — Omega Seamaster Professional 300 (Blue - Steel) Ref. 210.30.42.20.03.001","description":"\u003ch2\u003e\u003cspan\u003eCase #637 — Omega Seamaster Diver 300M “Blue Wave”\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eRef. 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\u003eThe blue Seamaster Diver 300M is one of Omega’s most recognizable modern sports watches, and on its full stainless-steel bracelet it has the presence to match.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe 42 mm case surrounds a polished blue ceramic dial engraved with the Seamaster’s signature wave pattern, paired with a matching blue ceramic dive bezel. The combination of blue ceramic, polished steel, skeletonized hands, and the substantial five-link bracelet gives this version noticeably more visual weight than the rubber-strap configuration while retaining the technical character that defines the Diver 300M.\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 an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e8-inch wrist\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and should retain a substantial portion of Omega’s five-year factory warranty, subject to the exact warranty-card date and Omega 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\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 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\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\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 8-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 Seamaster Diver 300M has been one of Omega’s defining sports watches since 1993.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis generation brought the familiar design fully into Omega’s modern era. The wave pattern returned, now laser engraved into ceramic; the bezel moved to ceramic as well; and the movement became a METAS-certified Master Chronometer visible through the sapphire caseback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDespite those technical changes, the watch remains immediately recognizable through its scalloped bezel, skeletonized hands, helium escape valve, and distinctive bracelet.\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 a substantial part of the appeal.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt is a Co-Axial Master Chronometer movement with approximately 55 hours of power reserve and METAS certification covering precision, magnetic resistance, power reserve, and water resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe ceramic dial and bezel bring additional durability to the exterior, while 300-meter water resistance keeps the Diver 300M firmly within genuine professional dive-watch territory.\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 bracelet configuration gives the blue Seamaster its fullest visual expression.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhere the rubber version feels sportier and lighter, the steel bracelet adds substantial wrist presence and makes the polished blue ceramic dial feel even richer against the alternating brushed and polished surfaces of the case and bracelet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAt 42 mm, it is not a small watch, but the curved case architecture and bracelet keep it balanced on the wrist. This example’s approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e8-inch fit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e also means it retains generous bracelet sizing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAdd \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eexcellent condition, BPC, a 2024 date, and meaningful factory warranty remaining\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and Case 637 lands in the particularly desirable space between buying traditionally pre-owned and buying new.\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 in its full steel configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCeramic, Master Chronometer certification, 300-meter capability, strong bracelet presence, and unmistakable Omega design make it an exceptionally complete everyday sports watch.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis 2024 example adds the things that matter most in the secondary market: excellent condition, complete presentation, generous sizing, and plenty of factory warranty remaining.\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":58412384846127,"sku":null,"price":4375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0948\/5359\/5439\/files\/BST_6208.jpg?v=1788277779","url":"https:\/\/bakerstreettimepieces.com\/products\/case-637-omega-seamaster-professional-300-blue-steel-ref-210-30-42-20-03-001","provider":"Baker Street Timepieces","version":"1.0","type":"link"}