This Citizen Men’s ‘Promaster Dive’ Watch features a 44 mm stainless steel case, an anti-reflective mineral crystal, and luminescent index markers & hands. This dive watch features a Promaster crown to aid in protecting the watch from water. It has water resistance up to 200 meters / 660 feet / 20 Bar. The 20 mm black band is rubber, with a stainless steel clasp. This watch is an Eco-Drive, meaning it is powered by any light source & never needs a battery. Style #: BN0150-28E