Casio Men's GW9100-1 G-Shock Gulfman Solar Atomic Watch Quartz movement World Time (48 Cities), 1/100 Sec. stopwatch, countdown timer; accuracy: +/-15 seconds per month Tough solar power; rust resistant titanium bezel, shock resistant Auto EL backlight with Afterglow; 5 Daily alarms (1 with snooze) Water resistant to 660 feet (200 M): suitable for recreational scuba diving