Proof that a Dive watch can be fun & functional with the Citizen ISO-compliant Super Titanium 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 Super Titanium™ case and bracelet aluminum bezel and Black Dial one-way rotating elapsed time and WR200. Featuring our Eco-Drive technology – poweRed by light any light. Never needs a battery. Caliber number E168.