Prove that a dive watch can be both fun and functional with the ISO-certified Promaster Diver from CITIZEN®. Thanks to Eco-Drive technology, it is powered by light and never needs a battery—so you’ll never have to open your case back or compromise your dive again. Featuring a stainless steel case, a dark blue polyurethane strap, and a dark blue dial. Complete with an aluminum ring on the bezel, a one-way rotating elapsed time ring, and WR200. Powered by our Eco-Drive technology—fueled by light, any light. Never needs a battery. Caliber number E168.