The Seiko Prospex SPB117J1 is a men's automatic diver's watch. It boasts a 42mm stainless steel case with a super-hard coating and a sapphire crystal. The black dial features Lumibrite on the hands and indices for enhanced visibility. Powered by the 6R35 automatic movement, it provides a power reserve of approximately 70 hours. The watch is water-resistant up to 200 meters and includes a stainless steel bracelet with a three-fold clasp with secure lock and push-button release.