Reach a higher altitude in style and performance with the promaster skyhawk u830, an action-ready chronograph with a unique aesthetic and technical capabilities. 43mm stainless steel case rotating slide-rule bezel blue analog-digital dial scratch-resistant sapphire crystal quartz chronograph movement functions include perpetual calendar, alarm, 1/100 second chronograph measuring up to 24 hours, and 99-minute countdown timer stainless steel bracelet; push-button fold-over clasp 200-meter water resistance