Casio G-Shock Digital Dial Stainless Steel Quartz Men's Watch GD120TS-1 Imported Shock Resistant, LED backlight (Super Illuminator), Auto light switch, selectable illumination duration, afterglow Flash alert, Flashes with buzzer that sounds for alarms, hourly time signal, Approx. battery life: 7 years on CR2025 Multi Time (4 different cities), World time, 31 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off, Home city/World time city swapping 1/100-second stopwatch, Countdown timer, 5 daily or one-time alarms, Hourly time signal, Full auto-calendar (to year 2099), 12/24-hour format Water resistant to 660 feet (200 M): suitable for recreational scuba diving