It includes daily alarm, hourly time signal and auto calendar. Watch offers +/-30 seconds per month and is EL backlight to support for high resolution display. Diameter: 32 mm (case). Battery type: CR2016. Display type: Digital. Item shape: Rectangle. Dial window material type: Mineral. Band color: Silver. Dial color: Grey. Band material: Stainless-steel. Bezel material: Stainless-steel. Clasp: Fold-over clasp. Calendar: Day and date. Case thickness: 7 mm. Measuring capacity: 23'59.99". Measuring mode: Net time, split time, 1st - 2nd place times. Battery life: 7 years, 1/100 second digital stopwatch. Size: 37.5mm x 33.5mm x 9.5mm. Special feature: Daily alarm, hourly time signal, Luminous. Weight: 58 g.