The Seiko Prospex SPB383J1 Automatic GMT Diver’s Men Watch combines professional dive performance with GMT dual-time functionality. Powered by the Calibre 6R54 automatic movement, it offers a 72-hour power reserve and precise timekeeping. The 42mm stainless steel case with hard coating is fitted with a black ceramic one-way rotating bezel and screw-down crown, ensuring 200-meter water resistance. Featuring a black dial with Lumibrite hands, markers, and a GMT hand for a second time zone, this watch is protected by sapphire crystal and finished with a robust stainless steel bracelet.