This men's Citizen Eco-Drive® Promaster Nighthawk watch has a pilot's slide rule dial operated by the crown at eight o'clock, a black dial and non-reflective crystal glass in a 42.0mm stainless steel case. Japanese quartz movement ensures accurate timekeeping, and the Citizen Eco-Drive® technology harnesses the power of any light source so it never needs a new battery. The stainless steel link bracelet secures with a fold-over clasp. It is water-resistant up to 200 metres and 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.