Proof 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 caseback or compromise your dive again. Featured in a black ion-plated stainless steel case and bracelet, black aluminum bezel with matching black dial and a hint of a red accent, one-way rotating elapsed time and WR200. Featuring our Eco-Drive technology – powered by any light so you never need a battery. 45 mm case size Foldover clasp Bracelet band Quartz movement 5-year limited liability warranty Imported Material & Care Stainless steel Requires specialty care