This Citizen Promaster SST (Split Second Timer) men's timepiece features a world time, 1/1000 second chronograph, recall of up to 20 lap times, analog/digital display, 99-minute countdown timer, average speed calculator, and month/day/date. The black ion-plated stainless steel case and bezel has a black dial with red accents. The black ion-plated stainless steel bracelet fastens with a push-button fold-over clasp. The watch is equipped with Eco-Drive technology - powered by light, any light. Never needs a battery. Caliber number U700.