1.The stop watch works perfectly in stopwatch mode and stopwatch timer mode, it can record up to 10 hours with an astonishing accuracy of 1/100 seconds. 2.The split mode comes handy in your training sessions allowing you to record in both the Split and Lap time with the ability to recall 20 memories for multiple events. 3.The feature allows you to use it to count number as a electronic tally counter which can count from 0 to 9999, or from 9999 to 0. 4.The stopwatch displays clock/calendar with alarm function; With a battery that uses power so efficiently, typically lasting two years this stopwatch lives up to its expectations.