Casio men's sport watch from the G-Shock series featuring: 5 independent daily alarms (4 one-time alarms and 1 snooze alarm), 1/100-second stopwatch, measuring modes(elapsed time, split time, 1st-2nd place times), 12/24-hour format, auto-calendar (to year 2039), countdown timer(countdown start time setting range: 1 to 60 minutes, 1-minute increments), auto-repeat, time up alarm, progress beeper on/off, hourly time signal, LED light, auto light switch, afterglow regular timekeeping, analog quartz movement, 2 hands (hour, minute (hand moves every 20 seconds) igital: hour, minutes, seconds, am/pm, month, date and date display, shock resistant (G-SHOCK) World time 29 time zones (27 cities), city code display, and daylight saving on/off. Size of case / total weight AW-582, 55.2 x 47.6 x 14.2 mm / 51 g Case: Resin Accuracy per month: ±15 sec Battery Type: CR1220 Battery Life: 3 YRS LED: Amber Accuracy: ±15 seconds per month Approx. battery life 2 years on CR1220