1/100th sec stopwatch up to 40 minutes. 1 second from 40 mins up to 24 hrs. Time, month, weekday, alarm. Split times. 12/24 hr selectable. Snooze function. Water resistant. Supplied complete with instructions and 1 button cell SR44 1.5V battery. Size 69 x 59 x 19mm, weight 51g Colour may vary.