{"product_id":"seiko-5-sports-sbsa311-jdm-skx-heritage-design-reissue-limited-edition-automatic-silver-dial-mens-watch","title":"SEIKO 5 SPORTS SBSA311 JDM SKX Heritage Design Reissue Limited Edition Automatic Silver Dial Men's Watch","description":"\u003ch2 data-source-line=\"8-8\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-source-line=\"10-10\"\u003eThe SEIKO 5 SPORTS SBSA311 is a rare Heritage Design Re-creation Limited Edition that revives one of the most influential SEIKO 5 models from the late 1960s. Inspired by the original watch that helped establish the foundation of the SEIKO 5 SPORTS lineage, this modern reinterpretation faithfully recreates key vintage details, including the classic “5” emblem at 12 o’clock, the distinctive day-date display layout, the silver dial, and the bi-directional rotating bezel. Its compact 38.2 mm case diameter gives the watch an authentic retro presence while benefiting from modern SEIKO manufacturing standards.\u003c\/p\u003e\n\u003cp data-source-line=\"12-12\"\u003ePowered by the proven Caliber 4R36, the SBSA311 features a mechanical automatic movement with manual winding capability. The movement runs at 21,600 vibrations per hour, uses 24 jewels, and offers approximately 41 hours of power reserve when fully wound. A stop-seconds function allows more precise time setting, while the day-date display adds practical everyday convenience. This combination gives the watch the charm of traditional mechanical watchmaking without the need for battery replacement.\u003c\/p\u003e\n\u003cp data-source-line=\"14-14\"\u003eFrom a usability perspective, the SBSA311 is designed to be more than a collector’s display piece. The dual-curved Hardlex crystal preserves the vintage-inspired profile while offering everyday durability, and LumiBrite on the hands, indexes, and bezel improves visibility in low-light conditions. With 10 bar water resistance, a stainless steel bracelet, screw case back, and balanced 137g weight, it offers reliable daily wearability while maintaining its heritage character.\u003c\/p\u003e\n\u003cp data-source-line=\"16-16\"\u003eLimited to 9,999 pieces worldwide, with only 1,000 allocated to the Japanese domestic market, the SBSA311 is significantly more collectible than regular-production SEIKO 5 SPORTS models. Our store currently has only one unit available, and it is offered as a premium collector item due to its rarity, limited domestic availability, and strong enthusiast demand. Buyers can purchase with confidence: this is a 100% authentic genuine SEIKO 5 SPORTS SBSA311, not a custom build, homage, or aftermarket reproduction.\u003c\/p\u003e\n\u003cp data-source-line=\"18-18\"\u003eRare JDM Limited Model \/ Only One Available \/ 100% Authentic Genuine SEIKO\u003c\/p\u003e\n\u003ch2 data-source-line=\"20-20\"\u003eKey Specifications\u003c\/h2\u003e\n\u003cul data-source-line=\"22-41\"\u003e\n\u003cli data-source-line=\"22-22\"\u003eCase: 44.7 × 38.2 × 12.3 mm, 137g, stainless steel construction\u003c\/li\u003e\n\u003cli data-source-line=\"23-23\"\u003eBezel: Bi-directional rotating bezel\u003c\/li\u003e\n\u003cli data-source-line=\"24-24\"\u003eBand: Stainless steel bracelet, one-push three-fold clasp\u003c\/li\u003e\n\u003cli data-source-line=\"25-25\"\u003eWater resistance: 10 bar \/ 100m\u003c\/li\u003e\n\u003cli data-source-line=\"26-26\"\u003eMovement: Caliber 4R36 Mechanical Automatic, manual winding compatible\u003c\/li\u003e\n\u003cli data-source-line=\"27-27\"\u003eFrequency: 21,600 vibrations per hour \/ 6 beats per second\u003c\/li\u003e\n\u003cli data-source-line=\"28-28\"\u003eJewels: 24 jewels\u003c\/li\u003e\n\u003cli data-source-line=\"29-29\"\u003ePower: Automatic winding with manual winding; approx. 41-hour power reserve\u003c\/li\u003e\n\u003cli data-source-line=\"30-30\"\u003eAccuracy: +45 to -35 seconds per day\u003c\/li\u003e\n\u003cli data-source-line=\"31-31\"\u003eDisplay: Analog silver dial with vintage-style SEIKO 5 design\u003c\/li\u003e\n\u003cli data-source-line=\"32-32\"\u003eFunctions: Day display, date display, stop-seconds function, manual winding\u003c\/li\u003e\n\u003cli data-source-line=\"33-33\"\u003eSpecial features: Heritage Design Re-creation, Limited Edition case back, serial number engraving, screw case back, rotating bezel, special presentation box\u003c\/li\u003e\n\u003cli data-source-line=\"34-34\"\u003eIllumination: LumiBrite on hands, indexes, and bezel\u003c\/li\u003e\n\u003cli data-source-line=\"35-35\"\u003eGlass: Dual-curved Hardlex crystal\u003c\/li\u003e\n\u003cli data-source-line=\"36-36\"\u003eOrigin: Japan Domestic Market (JDM)\u003c\/li\u003e\n\u003cli data-source-line=\"37-37\"\u003eWarranty: 3-Year Manufacturer Warranty (Japan)\u003c\/li\u003e\n\u003cli data-source-line=\"38-38\"\u003eModel Code: SBSA311\u003c\/li\u003e\n\u003cli data-source-line=\"39-39\"\u003eRelease Date: July 2025\u003c\/li\u003e\n\u003cli data-source-line=\"40-41\"\u003eLimited Edition: 9,999 pieces worldwide \/ 1,000 pieces for Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-source-line=\"42-42\"\u003eKey Highlights\u003c\/h2\u003e\n\u003cp data-source-line=\"44-44\"\u003eThe SBSA311 stands out as a faithful modern recreation within the SEIKO 5 SPORTS collection. Its late-1960s inspiration, vintage “5” emblem, silver dial, compact case profile, and heritage-style bezel give it a much stronger collector identity than standard SEIKO 5 SPORTS models.\u003c\/p\u003e\n\u003cp data-source-line=\"46-46\"\u003eIts Caliber 4R36 automatic movement delivers practical mechanical performance with manual winding, stop-seconds functionality, 24 jewels, and an approx. 41-hour power reserve. For enthusiasts, this movement offers the tactile appeal of a traditional automatic watch while remaining easy to use for everyday wear.\u003c\/p\u003e\n\u003cp data-source-line=\"48-48\"\u003eOn the wrist, the 38.2 mm case size gives the watch a vintage-correct feel, while the stainless steel bracelet, dual-curved Hardlex crystal, LumiBrite visibility, and 10 bar water resistance provide dependable modern usability. It is compact, wearable, and suitable for both daily use and collection ownership.\u003c\/p\u003e\n\u003cp data-source-line=\"50-50\"\u003eWithin the SEIKO 5 SPORTS SKX Series, the SBSA311 is a highly distinctive JDM limited model. With only 1,000 pieces allocated to Japan and only one unit currently available from our store, it is a rare opportunity for buyers seeking an authentic SEIKO heritage reissue with strong collectible appeal.\u003c\/p\u003e\n\u003ch2 data-source-line=\"52-52\"\u003eShort Promo Line\u003c\/h2\u003e\n\u003cp data-source-line=\"54-54\"\u003eRare JDM Limited Model \/ Only One Available \/ 100% Authentic Genuine SEIKO\u003c\/p\u003e","brand":"SEIKO","offers":[{"title":"Default Title","offer_id":47006269079807,"sku":"SBSA311","price":250600.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/0561\/5871\/files\/watch-moonf_sbsa311_i_20250612144556.jpg?v=1751757306","url":"https:\/\/japanheartfulstore.com\/products\/seiko-5-sports-sbsa311-jdm-skx-heritage-design-reissue-limited-edition-automatic-silver-dial-mens-watch","provider":"Japan Heartful Store","version":"1.0","type":"link"}