New Survivor 2 SX Series Chronograph Stopwatches for Professional, Affordable Timing. Great for Physical Education! It is easy to use and is a great, low cost stopwatch for your basic timing needs.The NEW Survivor series have been redesigned in our NEW SX cases featuring: NEW Micro Switches NEW Magnum XL Display NEW 5 Year Battery life (CR2032) NEW Breakaway Lanyard Cumulative Split Timing Split release action 24 hour timing range 1, 2 Fast Finish Event/Timeout Start/Stop Timing interval (1/100 sec to 40min) Water resistant to 30m/100ft