This men's citizen eco-driveâ® perpetual chrono a-t watch is constructed in stainless steel and features a black dial, a non-reflective crystal, luminescent hands, chronograph and daily alarm in a 42. 0mm case. Citizen eco-driveâ® technology harnesses the power of any light source so it never needs a battery. The perpetual atomic-time feature means the watch automatically adjusts for odd and even months and leap years through the year 2100. The radio-controlled accuracy receives signals both automatically and on-demand from the usa, europe and japan. This watch is water-resistant up to 200 meters and secures with a polished link stainless steel bracelet with hidden push-button fold-over clasp. This watch includes a five-year limited manufacturer warranty, with an additional one-year warranty upon registering your watch with citizen. We are an authorized citizen dealer.