G-Shock GLS5600KL-1 Series watch by Casio. Shock resistant. 200M water resistant. Low temperature resistant (-20 C/-4 F). Auto E.L. backlight with afterglow. World time. 29 time zones (48 cities), city code display, daylight saving on/off. Four multi-function alarms and one snooze alarm. Hourly time signal. Flash alert. Flasher with buzzer that sounds for alarms, hourly time signal, countdown timer time-up alarm, countdown timer progress beeper, stopwatch auto-start. 1/100 second dual stopwatches (ST1, ST2). Measuring capacity: 999:59'59.99�. Measuring modes: alapsed time, split time, 1st-2nd place times. Other: auto-start (ST1 only). Countdown timer. Measuring unit: one second. Countdown range: 24 hours. Countdown start time setting range: one minute to 24 hours (one-minute increments and one-hour increments). Others: auto-repeat, progress beeper. Full auto calendar (pre-programmed until the year 2099). 12/24 hour formats. Button operation tone on/off. Accuracy: +/-15 seconds per month. Battery: CR2025. Approx battery life: three years. Module 3178. Imported.