Prove that a dive watch can be fun and functional with the Citizen ISO-compliant Promaster Diver. With Eco-Drive technology, it is powered by light and never needs a battery, so you'll never need to open your case back or compromise your dive again. Featured with a Super Titanium™ case, blue polyurethane strap, and blue dial. Additional features include an aluminum ring on the bezel, one-way rotating elapsed time, screw-back case, screw-down crown, and WR200.