This stylish features in a rose gold-tone stainless steel case with chocolate brown dial and bezel, brown leather strap and date display. Featuring Citizen Eco-Drive technology – powered by light, any light. Never needs a battery. A chronograph watch is a display watch with a timer (stopwatch) function. To use the timer function, push the bottom button on the side of the watch to set the second hand to zero (if it’s not on zero yet) and push the top button to start and stop timing.