{"product_id":"seiko-prospex-diver-scuba-samurai-sbdy131-black-dial-automatic-200m-jdm-men-s-watch","title":"SEIKO PROSPEX Diver Scuba Samurai SBDY131 Black Dial Automatic 200m JDM Men’s Watch","description":"\u003ch2\u003eSEIKO PROSPEX Diver Scuba Samurai SBDY131\u003c\/h2\u003e\n\n\u003cp\u003eThe SEIKO PROSPEX SBDY131 is a Japan-made mechanical diver’s watch featuring the sharp, angular case design commonly known as the Samurai. This updated model preserves the strong linear profile of the established design while introducing a more compact case, a black dial and a newly designed stainless-steel bracelet.\u003c\/p\u003e\n\n\u003ch3\u003eCompact Samurai Design\u003c\/h3\u003e\n\n\u003cp\u003eThe Samurai nickname reflects the watch’s distinctive case, with angular lines and sharply defined surfaces reminiscent of a precisely shaped blade. The SBDY131 updates this recognizable style with a more condensed profile designed to provide improved comfort without losing its bold character.\u003c\/p\u003e\n\n\u003cp\u003eThe stainless-steel case measures 41.7 mm in diameter, 49.5 mm from lug to lug and 12.3 mm thick. Its reduced proportions make the modern Samurai more manageable on the wrist while retaining the substantial construction of a mechanical diver’s watch.\u003c\/p\u003e\n\n\u003ch3\u003eBlack Diver’s Dial\u003c\/h3\u003e\n\n\u003cp\u003eThe black dial uses large luminous hour markers and clearly defined hands for quick reading. A date calendar is positioned between the 4 and 5 o’clock markers, allowing the full LumiBrite-equipped index at 3 o’clock to remain visible.\u003c\/p\u003e\n\n\u003cp\u003eThe matching black unidirectional rotating bezel provides an elapsed-time scale, while LumiBrite on the hands, hour markers and bezel supports visibility in dark environments.\u003c\/p\u003e\n\n\u003ch3\u003eAutomatic Caliber 4R35\u003c\/h3\u003e\n\n\u003cp\u003eThe SBDY131 is powered by SEIKO’s 23-jewel mechanical Caliber 4R35. The movement winds automatically through normal wrist motion and can also be wound manually through the crown.\u003c\/p\u003e\n\n\u003cp\u003eCaliber 4R35 operates at 21,600 vibrations per hour and provides a power reserve of approximately 41 hours when fully wound. Its specified accuracy is +45 to −35 seconds per day under normal temperature conditions. It also includes a stop-seconds function for more precise time setting and a date calendar.\u003c\/p\u003e\n\n\u003ch3\u003ePurpose-Built Diver’s Construction\u003c\/h3\u003e\n\n\u003cp\u003eHardlex crystal protects the dial, while a screw-down crown and screw case back support the watch’s 200 m air-diving water resistance. The unidirectional bezel is designed to prevent accidental extension of a measured elapsed time.\u003c\/p\u003e\n\n\u003cp\u003eThe watch also provides magnetic resistance. Its stainless-steel construction and functional diving features make it suitable for both active use and everyday wear.\u003c\/p\u003e\n\n\u003ch3\u003eStainless-Steel Diver’s Bracelet\u003c\/h3\u003e\n\n\u003cp\u003eThe solid stainless-steel bracelet complements the angular case design and is secured by a three-fold clasp with a secure lock, push-button release and diver extension. The bracelet accommodates a maximum wrist circumference of approximately 205 mm and connects to the case at 20 mm lugs.\u003c\/p\u003e\n\n\u003ch3\u003eJapanese Domestic Market Model\u003c\/h3\u003e\n\n\u003cp\u003eSBDY131 is the reference designated for the Japanese domestic market. The corresponding international reference is SRPL13. The JDM designation identifies its intended market, while verified domestic product information separately confirms that the SBDY131 is manufactured in Japan.\u003c\/p\u003e\n\n\u003ch3\u003eKey Highlights\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eCompact interpretation of the angular design commonly known as the Samurai\u003c\/li\u003e\n\u003cli\u003eJapan-made Japanese Domestic Market model\u003c\/li\u003e\n\u003cli\u003eBlack dial with black unidirectional rotating bezel\u003c\/li\u003e\n\u003cli\u003eMechanical automatic Caliber 4R35 with manual winding\u003c\/li\u003e\n\u003cli\u003eApproximately 41-hour power reserve\u003c\/li\u003e\n\u003cli\u003eStop-seconds function and date calendar\u003c\/li\u003e\n\u003cli\u003e41.7 mm stainless-steel case with Hardlex crystal\u003c\/li\u003e\n\u003cli\u003eSolid stainless-steel bracelet with diver extension\u003c\/li\u003e\n\u003cli\u003e200 m air-diving water resistance\u003c\/li\u003e\n\u003cli\u003eLumiBrite on the hands, hour markers and bezel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%; border-collapse:collapse; border-spacing:0; table-layout:fixed;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:34%; border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eBrand \/ Collection\u003c\/th\u003e\n\u003ctd style=\"width:66%; border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eSEIKO PROSPEX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eSeries\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eDiver Scuba\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eCommon Design Name\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eSamurai\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eModel\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eSBDY131\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eInternational Reference\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eSRPL13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eMarket\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eJapanese Domestic Market\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eCountry of Manufacture\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eEdition\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eRegular model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eWatch Type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eMechanical automatic diver’s watch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eDisplay\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eAnalog, three hands with date display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eDial Color\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eCase Dimensions\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e49.5 × 41.7 × 12.3 mm (length × width × thickness)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eCase Diameter\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e41.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eLug-to-Lug\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e49.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eThickness\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e12.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eApproximately 170 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eCase Material\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eBezel\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eBlack unidirectional rotating bezel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eCrystal\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eHardlex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eCase-Back\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eScrew case back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eCrown\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eScrew-down crown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eBracelet\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eSolid stainless-steel bracelet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eClasp\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eThree-fold clasp with secure lock, push-button release and diver extension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eLug Width\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eMaximum Wrist Size\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eApproximately 205 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eMovement Type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eMechanical automatic with manual winding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eCaliber\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e4R35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eWinding System\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eAutomatic and manual winding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eFrequency\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e21,600 vibrations per hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eJewels\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e23 jewels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003ePower Reserve\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eApproximately 41 hours when fully wound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eAccuracy\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e+45 to −35 seconds per day under normal temperature conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eFunctions\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eStop-seconds function and date calendar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eLuminescence\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eLumiBrite on the hands, hour markers and bezel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eWater Resistance\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e200 m air-diving water resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eMagnetic Resistance\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e4,800 A\/m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eRelease Date\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eJuly 6, 2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003eJAN Code\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #cccccc; padding:8px 10px; text-align:left; vertical-align:top; overflow-wrap:anywhere;\"\u003e4954628467355\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n","brand":"SEIKO","offers":[{"title":"Default Title","offer_id":47928966316287,"sku":null,"price":95600.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/0561\/5871\/files\/sbdy131_1.jpg?v=1766197139","url":"https:\/\/japanheartfulstore.com\/products\/seiko-prospex-diver-scuba-samurai-sbdy131-black-dial-automatic-200m-jdm-men-s-watch","provider":"Japan Heartful Store","version":"1.0","type":"link"}