Sper Scientific Water Resistant Stopwatch 810012 - Digital Timer with Split Interval Function, 12/24 Hour Alarm Clock & Calendar for Sports, Labs, Fitness, and More

Digital Stopwatch - Water Resistant Counts up to 24 hours in 1/100th second resolution for the first 30 minutes with a 1 second resolution thereafter. Split interval function. Also has a 12/24 hour al...