Citizen Men's Eco-Drive Promaster Diver Watch with Date, BJ8050-08E Imported Diver's watch with easy-to-read dial, rotating bezel, and large luminous hands and hour markers Eco Drive technology is fueled by light and it never needs a battery. Case Material - Silver-Tone, Stainless Steel 48 mm stainless steel case, mineral dial window, and Japanese quartz movement with analog display Rubber band with buckle closure Water resistant to 300 m (1000 ft)