{"product_id":"casio-oceanus-ocw-t4000ba-1a3jf-jdm-solar-radio-titanium-analog-mens-watch-sapphire-crystal","title":"CASIO OCEANUS OCW-T4000BA-1A3JF JDM Solar Radio Titanium Analog Men's Watch Sapphire Crystal","description":"\u003cp data-start=\"485\" data-end=\"928\"\u003eThe CASIO OCEANUS OCW-T4000BA-1A3JF represents the fusion of advanced technology and refined Japanese craftsmanship. Featuring a full black DLC-coated titanium case and bracelet, it delivers exceptional lightness, durability, and a sophisticated stealth aesthetic. The green vapor-deposited dial adds depth and subtle color variation, creating a distinctive yet elegant presence within the OCEANUS lineup. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"930\" data-end=\"1320\"\u003eEquipped with Tough Solar power, Multiband6 radio-controlled timekeeping, and Bluetooth smartphone link functionality, the watch ensures precise time synchronization anywhere in the world. Through the CASIO WATCHES app, users can easily manage world time across approximately 300 cities and automatically adjust time zones and daylight saving settings. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1322\" data-end=\"1723\"\u003eWith 10-bar water resistance, dual anti-reflective sapphire crystal, and Zaratsu polishing for a high-end finish, the OCW-T4000BA-1A3JF is designed for both daily reliability and premium comfort. As a Japan Domestic Market (JDM) model released in May 2021, it stands as a versatile luxury sports watch combining functionality, precision, and understated elegance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1725\" data-end=\"1728\"\u003e\n\u003ch2 data-start=\"1730\" data-end=\"1755\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1733\" data-end=\"1755\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1757\" data-end=\"2754\"\u003e\n\u003cli data-start=\"1757\" data-end=\"1863\"\u003eCase: 48.1 × 42.8 × 11.9 mm, approx. 90g, titanium (DLC coating) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1864\" data-end=\"1900\"\u003eBezel: Titanium with DLC coating\u003c\/li\u003e\n\u003cli data-start=\"1901\" data-end=\"1954\"\u003eBand: Solid titanium bracelet, slide-adjust clasp\u003c\/li\u003e\n\u003cli data-start=\"1955\" data-end=\"2028\"\u003eWater resistance: 100m (10 ATM) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2029\" data-end=\"2077\"\u003eMovement: Tough Solar (solar-powered quartz)\u003c\/li\u003e\n\u003cli data-start=\"2078\" data-end=\"2184\"\u003eBattery\/Power: ~5 months (normal use), ~20 months (power saving) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2185\" data-end=\"2280\"\u003eAccuracy: Radio-controlled \/ ±15 sec\/month (non-sync) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2281\" data-end=\"2329\"\u003eDisplay: Analog, green vapor deposition dial\u003c\/li\u003e\n\u003cli data-start=\"2330\" data-end=\"2413\"\u003eFunctions: World time (27 cities \/ ~300 via app), stopwatch, full auto calendar\u003c\/li\u003e\n\u003cli data-start=\"2414\" data-end=\"2482\"\u003eSpecial features: Bluetooth, Multiband6, dual time, power saving\u003c\/li\u003e\n\u003cli data-start=\"2483\" data-end=\"2509\"\u003eIllumination: NeoBrite\u003c\/li\u003e\n\u003cli data-start=\"2510\" data-end=\"2571\"\u003eAdditional: Sapphire crystal (dual AR), Zaratsu polishing\u003c\/li\u003e\n\u003cli data-start=\"2572\" data-end=\"2627\"\u003eOrigin: Japan Domestic Market (JDM \/ Made in Japan)\u003c\/li\u003e\n\u003cli data-start=\"2628\" data-end=\"2651\"\u003eWarranty: 1–3 years\u003c\/li\u003e\n\u003cli data-start=\"2652\" data-end=\"2689\"\u003eJAN\/Model Code: OCW-T4000BA-1A3JF\u003c\/li\u003e\n\u003cli data-start=\"2690\" data-end=\"2754\"\u003eRelease date: May 2021 \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2756\" data-end=\"2759\"\u003e\n\u003ch2 data-start=\"2761\" data-end=\"2782\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2764\" data-end=\"2782\"\u003eKey Highlights\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2784\" data-end=\"3022\"\u003eThe OCW-T4000BA-1A3JF stands out as a full-spec “black titanium Oceanus,” combining DLC coating with lightweight titanium construction. This creates a premium, scratch-resistant finish while maintaining exceptional comfort for daily wear.\u003c\/p\u003e\n\u003cp data-start=\"3024\" data-end=\"3228\"\u003eIts integration of Bluetooth smartphone sync and Multiband6 radio control ensures near-perfect time accuracy globally. This dual-sync system eliminates manual adjustments, making it an ideal travel watch.\u003c\/p\u003e\n\u003cp data-start=\"3230\" data-end=\"3419\"\u003eThe green vapor-deposited dial introduces a subtle yet distinctive character, shifting appearance depending on lighting conditions. This adds depth to the otherwise stealth-oriented design.\u003c\/p\u003e\n\u003cp data-start=\"3421\" data-end=\"3662\"\u003ePositioned within the OCEANUS Classic Line, this JDM model is widely regarded as a high-value premium solar radio watch—offering luxury-level finishing and advanced functionality at a more accessible tier than traditional Swiss counterparts.\u003c\/p\u003e","brand":"CASIO","offers":[{"title":"Default Title","offer_id":46581405417727,"sku":"1123303","price":155500.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/0561\/5871\/files\/hit-market_01123303.jpg?v=1739365738","url":"https:\/\/japanheartfulstore.com\/products\/casio-oceanus-ocw-t4000ba-1a3jf-jdm-solar-radio-titanium-analog-mens-watch-sapphire-crystal","provider":"Japan Heartful Store","version":"1.0","type":"link"}