Casio Kids F-108WH-3ACF Big Square Digital Display Quartz Army Green Watch Imported LED Light, Daily alarm, Hourly time signal 1/100 second stopwatch, Measuring capacity: 59'59.99", Measuring modes: Elapsed time, split time 1st-2nd place times, Auto-calendar set at 28 days for February, 12/24 hour formats Accuracy: +/-30 seconds per month, Battery: CR2016, Approx. battery life: 7 years Great for kids 13 and up