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. Featured in a Super Titanium™ case with polyurethane strap, 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.