Citizen Watch Eco Drive Promaster Diver Mens Color. For anyone looking for the perfect waterproof watch, the Promaster Diver from Citizen is the right choice. ISO compliant for depths up to 200 metres, this men´s dive watch features a stainless steel case and a black polyurethane strap. The black dial is framed with a green, one-way rotating bezel, and features luminous hands and markers. And you´ll never have to worry about running out of battery life, since the dive watch is sustainably powered by light with Eco-Drive technology. Whether you want to explore oceans, swim in rivers, or just enjoy an afternoon in a swimming pool, this watch will look great and never miss a beat.