The Seiko Prospex SPB377J1 is a men's automatic diver's watch, part of the 'Save the Ocean' series. It features a 42mm stainless steel case and a blue wave-patterned dial, inspired by the ocean. The hands and markers are coated with Lumibrite for enhanced visibility underwater. Powered by the 6R35 automatic movement, it offers a 70-hour power reserve. The watch is water-resistant up to 200 meters and comes with a stainless steel bracelet.