Black resin strap and case with traditional buckle closure. Digital dial with time day of the week and day of the month display. LED backlight illuminator. 1/100-Second stopwatch. Daily alarm. Hourly time signal. Auto calendar. 12/24 Hour format. Accuracy: +/- 30 seconds per month. Resin glass dial window. Water resistant to 50 M. Case size: 44.4 x 43.2 x 10.8mm. 7-Year approximate battery life.