{"product_id":"case-543-omega-seamaster-300-wave-dial-blue-ref-212-30-42-20-03-001","title":"Case #543 — Omega Seamaster Diver 300M Ref. 210.30.42.20.03.001","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eCase #543 — Omega Seamaster Diver 300M Ref. 210.30.42.20.03.001\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"71\" data-end=\"193\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong data-start=\"71\" data-end=\"82\"\u003eStatus:\u003c\/strong\u003e Active Investigation\u003cbr data-start=\"103\" data-end=\"106\"\u003e\u003cstrong data-start=\"106\" data-end=\"120\"\u003eCondition:\u003c\/strong\u003e Excellent Pre-Owned\u003cbr data-start=\"140\" data-end=\"143\"\u003e\u003cstrong data-start=\"143\" data-end=\"153\"\u003eScope:\u003c\/strong\u003e Box, Papers, and Cards\u003cbr data-start=\"176\" data-end=\"179\"\u003e\u003cstrong data-start=\"179\" data-end=\"188\"\u003eYear:\u003c\/strong\u003e 2021\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1xxz1s1\" data-start=\"195\" data-end=\"215\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"198\" data-end=\"215\"\u003e🔎 Case Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"217\" data-end=\"603\"\u003eThe Omega Seamaster Diver 300M Ref. 210.30.42.20.03.001 presents one of Omega’s most recognizable professional dive watches in its signature blue-on-steel configuration. Its polished blue ceramic dial carries the collection’s laser-engraved wave pattern, paired with a matching ceramic bezel and the familiar skeletonized handset that has defined the Seamaster Professional for decades.\u003c\/p\u003e\n\u003cp data-start=\"605\" data-end=\"979\"\u003eThe 42mm stainless steel case gives the watch confident wrist presence, while the five-link bracelet preserves the unmistakable character of the Diver 300M. Beneath the sapphire exhibition caseback is Omega’s Co-Axial Master Chronometer Calibre 8800, combining a 55-hour power reserve with METAS-certified performance and resistance to magnetic fields reaching 15,000 gauss.\u003c\/p\u003e\n\u003cp data-start=\"981\" data-end=\"1231\"\u003eThis example dates from \u003cstrong data-start=\"1005\" data-end=\"1013\"\u003e2021\u003c\/strong\u003e and is presented in \u003cstrong data-start=\"1034\" data-end=\"1067\"\u003eexcellent pre-owned condition\u003c\/strong\u003e, showing only light wear consistent with careful use. It includes its \u003cstrong data-start=\"1138\" data-end=\"1164\"\u003ebox, papers, and cards\u003c\/strong\u003e and is currently sized to fit approximately a \u003cstrong data-start=\"1211\" data-end=\"1230\"\u003e7.75-inch wrist\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2 data-section-id=\"153bhp\" data-start=\"1233\" data-end=\"1256\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1236\" data-end=\"1256\"\u003e🕰️ The Evidence\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1258\" data-end=\"2052\"\u003e\u003cstrong data-start=\"1258\" data-end=\"1272\"\u003eReference:\u003c\/strong\u003e 210.30.42.20.03.001\u003cbr data-start=\"1292\" data-end=\"1295\"\u003e\u003cstrong data-start=\"1295\" data-end=\"1305\"\u003eModel:\u003c\/strong\u003e Omega Seamaster Diver 300M\u003cbr data-start=\"1332\" data-end=\"1335\"\u003e\u003cstrong data-start=\"1335\" data-end=\"1344\"\u003eCase:\u003c\/strong\u003e Stainless Steel\u003cbr data-start=\"1360\" data-end=\"1363\"\u003e\u003cstrong data-start=\"1363\" data-end=\"1377\"\u003eCase Size:\u003c\/strong\u003e 42mm\u003cbr data-start=\"1382\" data-end=\"1385\"\u003e\u003cstrong data-start=\"1385\" data-end=\"1395\"\u003eBezel:\u003c\/strong\u003e Unidirectional Blue Ceramic Bezel with White Enamel Diving Scale\u003cbr data-start=\"1460\" data-end=\"1463\"\u003e\u003cstrong data-start=\"1463\" data-end=\"1475\"\u003eCrystal:\u003c\/strong\u003e Domed Scratch-Resistant Sapphire Crystal\u003cbr data-start=\"1516\" data-end=\"1519\"\u003e\u003cstrong data-start=\"1519\" data-end=\"1528\"\u003eDial:\u003c\/strong\u003e Polished Blue Ceramic with Laser-Engraved Waves\u003cbr data-start=\"1576\" data-end=\"1579\"\u003e\u003cstrong data-start=\"1579\" data-end=\"1592\"\u003eMovement:\u003c\/strong\u003e Omega Co-Axial Master Chronometer Calibre 8800\u003cbr data-start=\"1639\" data-end=\"1642\"\u003e\u003cstrong data-start=\"1642\" data-end=\"1660\"\u003ePower Reserve:\u003c\/strong\u003e Approximately 55 Hours\u003cbr data-start=\"1683\" data-end=\"1686\"\u003e\u003cstrong data-start=\"1686\" data-end=\"1700\"\u003eFunctions:\u003c\/strong\u003e Hours, Minutes, Seconds, and Date\u003cbr data-start=\"1734\" data-end=\"1737\"\u003e\u003cstrong data-start=\"1737\" data-end=\"1750\"\u003eBracelet:\u003c\/strong\u003e Stainless Steel Bracelet with Folding Clasp and Dive Extension\u003cbr data-start=\"1813\" data-end=\"1816\"\u003e\u003cstrong data-start=\"1816\" data-end=\"1833\"\u003eBracelet Fit:\u003c\/strong\u003e Approximately 7.75-Inch Wrist\u003cbr data-start=\"1863\" data-end=\"1866\"\u003e\u003cstrong data-start=\"1866\" data-end=\"1887\"\u003eWater Resistance:\u003c\/strong\u003e 300 Meters \/ 1,000 Feet\u003cbr data-start=\"1911\" data-end=\"1914\"\u003e\u003cstrong data-start=\"1914\" data-end=\"1938\"\u003eAdditional Features:\u003c\/strong\u003e Helium-Escape Valve and Sapphire Exhibition Caseback\u003cbr data-start=\"1991\" data-end=\"1994\"\u003e\u003cstrong data-start=\"1994\" data-end=\"2003\"\u003eYear:\u003c\/strong\u003e 2021\u003cbr data-start=\"2008\" data-end=\"2011\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2011\" data-end=\"2027\"\u003eAccessories:\u003c\/strong\u003e Box, Papers, and Cards\u003c\/p\u003e\n\u003cp data-start=\"2054\" data-end=\"2158\"\u003e\u003cstrong data-start=\"2054\" data-end=\"2074\"\u003eCondition Notes:\u003c\/strong\u003e Excellent pre-owned condition overall, with light wear consistent with careful use.\u003c\/p\u003e\n\u003ch2 data-section-id=\"uvz2c9\" data-start=\"2160\" data-end=\"2188\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2163\" data-end=\"2188\"\u003e🌊 Seamaster Heritage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2190\" data-end=\"2534\"\u003eThe Seamaster Diver 300M has remained one of Omega’s defining sports watches since its introduction in 1993. Its scalloped bezel, skeletonized handset, helium-release valve, and distinctive bracelet created an identity that is immediately recognizable and deeply connected to Omega’s modern diving history. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2536\" data-end=\"2774\"\u003eThis generation renewed the model with ceramic construction, a wave-engraved dial, an exhibition caseback, and Omega’s Master Chronometer movement technology, while preserving the features that made the original Diver 300M so distinctive.\u003c\/p\u003e\n\u003ch2 data-section-id=\"olqnr0\" data-start=\"2776\" data-end=\"2806\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2779\" data-end=\"2806\"\u003e🌟 Collector Provenance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2808\" data-end=\"3085\"\u003eThe Ref. 210.30.42.20.03.001 occupies an important place within the modern Seamaster lineage. It restored the celebrated wave dial after the cleaner “no-wave” generation while introducing a technically advanced ceramic dial and Omega’s Calibre 8800 Master Chronometer movement.\u003c\/p\u003e\n\u003cp data-start=\"3087\" data-end=\"3417\"\u003eThe blue-on-steel configuration remains the clearest expression of the Seamaster Professional identity. Its ceramic surfaces provide rich depth under changing light, while the 42mm case, professional diving specifications, and highly recognizable design give it lasting appeal as both a capable sports watch and an everyday Omega.\u003c\/p\u003e\n\u003cp data-start=\"3419\" data-end=\"3599\"\u003eThis \u003cstrong data-start=\"3424\" data-end=\"3432\"\u003e2021\u003c\/strong\u003e example is particularly attractive with its complete accompanying set, excellent overall condition, and bracelet sized generously for approximately a 7.75-inch wrist.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1m0aqgo\" data-start=\"3601\" data-end=\"3629\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3604\" data-end=\"3629\"\u003e🧾 From the Case File\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3631\" data-end=\"3831\"\u003eRecovered as a 2021 Omega Seamaster Diver 300M Ref. 210.30.42.20.03.001. Presented in excellent pre-owned condition with box, papers, and cards. Currently sized to fit approximately a 7.75-inch wrist.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1tceir8\" data-start=\"3833\" data-end=\"3855\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3836\" data-end=\"3855\"\u003e🗝️ BST Verdict\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3857\" data-end=\"4176\"\u003eCase #543 delivers the modern Seamaster Professional in its most iconic configuration: deep blue ceramic, stainless steel, engraved waves, and genuine professional diving capability. Its complete set, excellent condition, and versatile proportions make this a particularly strong example of Omega’s enduring Diver 300M.\u003c\/p\u003e\n\u003cp data-start=\"4178\" data-end=\"4219\"\u003e👉 \u003cstrong data-start=\"4181\" data-end=\"4219\"\u003eEvery case deserves a closer look.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Baker Street Timepieces","offers":[{"title":"Default Title","offer_id":58250143793455,"sku":null,"price":4350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0948\/5359\/5439\/files\/IMG_5582.jpg?v=1784940352","url":"https:\/\/bakerstreettimepieces.com\/products\/case-543-omega-seamaster-300-wave-dial-blue-ref-212-30-42-20-03-001","provider":"Baker Street Timepieces","version":"1.0","type":"link"}