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. Citizen Eco-Drive. Powered By Light Draws power from a single source; Light.... any light. Not only bright sunshine, but cloudy days, or even artificial light.
Eco-Drive converts light into electrical energy which is stored in a rechargeable power cell, driving the motor, gears, and hands. On a single full charge, the Eco-Drive watch can run for over 6 months - even when stored in the dark, resulting in never having to change your battery. Citizen Eco-Drive. Powered By Light Draws power from a single source; Light.... any light. Not only bright sunshine, but cloudy days, or even artificial light. Eco-Drive converts light into electrical energy which is stored in a rechargeable power cell, driving the motor, gears, and hands.
On a single full charge, the Eco-Drive watch can run for over 6 months - even when stored in the dark, resulting in never having to change your battery.