Citizen Mens Sport AT2569-04L Chrono Watch begins with EcoDrive solar technology that lets this chronograph run on light without ever needing a battery change, giving this sport watch exceptional reliability and green efficiency. This quartz mens watch pairs a 43 mm stainless steel case with a robust silicone strap, a tachymeter bezel for speed calculations and 10 bar (100 m) water resistance for swimready durability. With stopwatch chronograph, 24hour display and date functions, its built for daily wear and active lifestyles.