With Eco-Drive technology, the Promaster Diver Watch 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, with an aluminum bezel and black dial, one-way rotating elapsed time, and WR200. 44 mm case size Bracelet band Analog dial Three-hand quartz movement 5-year limited liability warranty Imported Material & Care Titanium, silver-tone metal Requires specialty care