The Seiko Prospex SPB103J1 Sumo Diver Automatic Men Watch is a professional-grade dive watch designed for performance and durability. Featuring a bold 45mm stainless steel case, vibrant green dial, and unidirectional rotating bezel, it offers strong wrist presence and classic diver styling. Powered by the Calibre 6R35 automatic movement, it delivers a 70-hour power reserve and reliable accuracy. With 200-meter water resistance, screw-down crown, sapphire crystal, and Lumibrite hands and markers, this Sumo Diver is built for underwater exploration and everyday wear.