The Seiko Prospex SFK003J1 is a men's automatic GMT diver's watch. It features a 42.5mm stainless steel case with a sapphire crystal and a magnifier over the date. The black dial is equipped with Lumibrite on the hands and indices, and it includes a GMT hand for dual time zone tracking. Powered by the 6R54 automatic movement, it offers a power reserve of approximately 72 hours. The watch is water-resistant up to 200 meters and comes with a stainless steel bracelet with a three-fold clasp with secure lock and push-button release with extender.