Product Description Waterproof resin glass Case bezel material Resin, LED-lit resin band Stopwatch 1100 seconds Measuring capacity 595999 Measuring modes Elapsed time, split time, 1st and 2nd place timing, Daily alarm Hourly time signal, Auto calendar 28 days for February 12/24 hour format, Regular timekeeping Hour, minute, second, day date, Accuracy 30 seconds per month Battery life approx. 5 years in CR1616, Case size 345 x 304 x 86 mm Total weight 16 g LED Umber