Proof that a dive watch can be fun & 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 caseback or compromise your dive again. Featured in stainless steel with azure blue aluminum bezel and matching azure blue dial, one-way rotating elapsed time and WR200. Caliber number E168. Case size 45mm. Case Material is two-tone, stainless steel, screw-down crown, one-way rotating elapsed time bezel. Dial is blue with luminous hands and markers. Water-Resistance: 200M/20Bar (Scuba Diving). Anti-Reflective Mineral Crystal. 5 year limited warranty.