{"product_id":"seiko-prospex-speedtimer-hbc004j-blue-grey-dial-countdown-inner-ring-calibre-6r55-automatic-core-shop-men-s-watch","title":"SEIKO Prospex Speedtimer HBC004J Blue-Grey Dial Countdown Inner Ring Calibre 6R55 Automatic Core Shop Men’s Watch","description":"\u003ch2 style=\"font-size:24px;margin:0 0 16px;\"\u003eSEIKO Prospex Speedtimer HBC004J Blue-Grey Dial Countdown Inner Ring Calibre 6R55 Automatic Core Shop Men’s Watch\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003e\nThe SEIKO Prospex Speedtimer HBC004J is a mechanical sports watch inspired by the solid forms, functional instruments and nostalgic interiors of neo-classic cars. It combines a blue-grey dial, orange accents, an internal countdown ring and an embossed black leather strap with the three-day performance of SEIKO Calibre 6R55.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:20px;margin:24px 0 12px;\"\u003eNeo-Classic Car-Inspired Design\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003e\nThe HBC004J expresses the character of neo-classic cars from the 1970s through the 2000s. Its blue-grey dial, solid stainless-steel case and highly legible hour markers create a functional instrument-like appearance, while orange details on the seconds hand and countdown scale provide a distinctive motorsport accent.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:20px;margin:24px 0 12px;\"\u003eInternal Countdown Ring\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003e\nA crown positioned at 4 o’clock rotates the internal dial ring, allowing the countdown scale to be aligned for measuring remaining time. The system takes inspiration from motorsport applications such as monitoring the time remaining before a rally start or the target completion time for service and pit work. It can also be used for everyday countdown timing.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:20px;margin:24px 0 12px;\"\u003eAutomatic Calibre 6R55\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003e\nThe watch is powered by SEIKO Calibre 6R55, an automatic mechanical movement that can also be wound manually. It operates at 21,600 vibrations per hour, contains 24 jewels and provides approximately 72 hours of power reserve when fully wound.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:20px;margin:24px 0 12px;\"\u003eStop-Seconds and Date Display\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003e\nCalibre 6R55 includes a stop-seconds function for more precise time setting and a practical date display. Its specified accuracy is +25 to -15 seconds per day under normal temperature conditions.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:20px;margin:24px 0 12px;\"\u003eCompact Stainless-Steel Case\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003e\nThe stainless-steel case measures 44.5 mm in length, 39.5 mm in width and 12.0 mm in thickness. DiaShield surface coating improves resistance to everyday scratches, while the compact proportions provide a balanced fit despite the watch’s robust 20-bar water resistance.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:20px;margin:24px 0 12px;\"\u003eCurved Sapphire Crystal\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003e\nThe dial is protected by a curved sapphire crystal with an anti-reflective coating on the inner surface. The sapphire crystal offers excellent scratch resistance, while the anti-reflective treatment helps reduce reflections and maintain clear visibility of the dial and countdown scale.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:20px;margin:24px 0 12px;\"\u003eEmbossed Leather Strap\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003e\nThe black cow-leather strap features an embossed surface inspired by classic car interiors. The leather is sourced from a tannery certified by the Leather Working Group, and a push-button three-fold clasp combines the traditional appearance of leather with convenient fastening.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:20px;margin:24px 0 12px;\"\u003eLumibrite and 20-Bar Water Resistance\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003e\nLumibrite is applied to the hands and hour markers to support visibility in low-light conditions. The watch also provides magnetic resistance, a screw case back and enhanced water resistance for daily use at 20 bar.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:20px;margin:24px 0 12px;\"\u003eKey Features\u003c\/h3\u003e\n\n\u003cul style=\"margin:0 0 16px;padding-left:22px;line-height:1.8;\"\u003e\n  \u003cli\u003eSEIKO Prospex SPEEDTIMER collection\u003c\/li\u003e\n  \u003cli\u003eSeiko Global Brand Core Shop exclusive model\u003c\/li\u003e\n  \u003cli\u003eNeo-classic car-inspired blue-grey dial\u003c\/li\u003e\n  \u003cli\u003eOrange-accented seconds hand and countdown scale\u003c\/li\u003e\n  \u003cli\u003eInternal countdown ring operated by the crown at 4 o’clock\u003c\/li\u003e\n  \u003cli\u003eAutomatic Calibre 6R55 with manual winding\u003c\/li\u003e\n  \u003cli\u003eApproximately 72-hour power reserve\u003c\/li\u003e\n  \u003cli\u003e21,600 vibrations per hour\u003c\/li\u003e\n  \u003cli\u003e24 jewels\u003c\/li\u003e\n  \u003cli\u003eStop-seconds function and date display\u003c\/li\u003e\n  \u003cli\u003eStainless-steel case with DiaShield coating\u003c\/li\u003e\n  \u003cli\u003eCurved sapphire crystal with inner anti-reflective coating\u003c\/li\u003e\n  \u003cli\u003eEmbossed black cow-leather strap\u003c\/li\u003e\n  \u003cli\u003ePush-button three-fold clasp\u003c\/li\u003e\n  \u003cli\u003eLumibrite on the hands and hour markers\u003c\/li\u003e\n  \u003cli\u003e20-bar water resistance\u003c\/li\u003e\n  \u003cli\u003eMagnetic resistance\u003c\/li\u003e\n  \u003cli\u003eMade in Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"font-size:20px;margin:24px 0 12px;\"\u003eProduct Specifications\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"width:38%;padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eBrand\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eSEIKO\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCollection\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eProspex\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eSeries\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eSPEEDTIMER\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eModel\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eHBC004J\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eInternational Reference\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eHBC004J\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eMarket\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eInternationally distributed model\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eEdition\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eSeiko Global Brand Core Shop Exclusive Model\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eWatch Type\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eAutomatic mechanical watch with internal countdown ring\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eGender\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eMen’s\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eDisplay\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eAnalog\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eDial Colour\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eBlue grey with orange accents\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eDesign Theme\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eNeo-classic car-inspired design\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eMovement Type\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eAutomatic mechanical with manual winding\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCalibre\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e6R55\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eFrequency\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e21,600 vibrations per hour \/ 3 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eJewels\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e24 jewels\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eAccuracy\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e+25 to -15 seconds per day under normal temperature conditions\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003ePower Reserve\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eApproximately 72 hours when fully wound\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eStop-Seconds Function\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eSupported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCalendar\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eDate display\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCountdown Function\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eInternal rotating ring with countdown scale, operated by the crown at 4 o’clock\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCase Material\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eStainless steel\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCase Coating\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eDiaShield\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCase Size\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e44.5 × 39.5 × 12.0 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eWeight\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e87 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCrystal\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eCurved sapphire crystal\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCrystal Coating\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eAnti-reflective coating on the inner surface\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eLuminescence\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eLumibrite on the hands and hour markers\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCase-Back\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eScrew case back; orientation may vary between individual watches\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eBand\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eEmbossed black cow-leather strap\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eLeather Sourcing\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eLeather from a Leather Working Group-certified tannery\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eBand Width\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e20 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCompatible Wrist Size\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eUp to 195 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eClasp\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003ePush-button three-fold clasp\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eWater Resistance\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e20 bar \/ 200 m\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eMagnetic Resistance\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eSupported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eCountry of Manufacture\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eJapan\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;background:#f5f5f5;\"\u003eJAN Code\u003c\/th\u003e\n      \u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e4954628473196\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n","brand":"SEIKO","offers":[{"title":"Default Title","offer_id":49200543695103,"sku":"HBC004J","price":171300.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/0561\/5871\/files\/hbc004j_1.jpg?v=1789296704","url":"https:\/\/japanheartfulstore.com\/products\/seiko-prospex-speedtimer-hbc004j-blue-grey-dial-countdown-inner-ring-calibre-6r55-automatic-core-shop-men-s-watch","provider":"Japan Heartful Store","version":"1.0","type":"link"}