Stoptec stopwatch 493, 500 file memory / dual timer The stopwatch Stoptec 493 is a 500 File Memory Stopwatch with very large three-line display. Below are the lap, the intermediate and the running time. The elapsed times are saved until the targeted deletion in the watch. Thus, no time can be lost. The watch has a clock mode with date and alarm, and a dual timer. In dual timer mode one or two times can proceed sequentially until a beep sounds. This is useful, for example, to control stress and break times. Featuring the clock is prevented with a high-quality tactile feedback mechanism mechanical measurement errors. A battery change can be easily done via a separate battery opening.