Casio Men's AWG100-1A G-Shock Multi-Band Solar Atomic Analog Watch Quartz movement Daily alarm, countdown timer, 1/100 second stopwatch Accuracy: +/-15 seconds per month (with no signal calibration); world Time (48 Cities), Shock Resistant LED Light with Afterglow; hourly Time Signal; auto Calendar (pre-programmed until the year 2099); 12 and 24 hour formats Water resistant to 660 feet (200 M): suitable for recreational scuba diving