The 3X-300M Stopwatch features a three-line display for running, cumulative and split times. Allows user to take 300 splits and review both cumulative and lap splits. It measures up to 10 hours by 1/100th second. Easy to see cumulative running time and current lap running time. User can review the current memory while continuing to run the watch and take splits. No further need to stop the watch to review memory.