Case / bezel material: resin, resin band, resin glass, water resistant, led light, 1/100-second stopwatch, measuring capacity: 59'59. 99", measuring modes: net time, split time, 1st-2nd place times, daily alarm, hourly time signal, auto-calendar (28 days for February), 12/24-hour format, regular time keeping: hour, minute, second, pm, date, day, accuracy: ±30 seconds per month, approx. battery life: 7 years on cr2016, size of case: 38. 2×35. 2×8. 5mm, total weight: 21g