This classic casio watch features an led light with 1 100th sec stopwatch this model also includes a daily alarm a timeless classic that never goes out of style led light a light emmiting diode led is used to illuminate the watch facedaily alarm the daily alarm sounds each day at the time you setstopwatch accurate measurement of elapsed time with a touch of a button 1 100th sec stopwatchwater resistant din 8310 iso 2281 resistant to minor splashing