CASIO FEATURES- G-Shock Atomic Solar Watch A Black G-Shock Atomic Solar Watch with resin band.* Tough Solar Power * Atomic Timekeeping * Shock Resistant * 200 meter water resistant * World time* 29 time zones (30 cities) * Daylight saving on/off * Auto electro-luminescent backlight with afterglow * 1/100-second stopwatch* Measuring capacity: 23:59'59.99""* Measuring modes: Elapsed time split time* 1st-2nd place times * 4 daily alarms and 1 snooze alarm * Hourly time signal * Auto-calendar (pre-programmed until the year 2099) * 12/24-hour format * Accuracy: +/-15 seconds per month (with no signal calibration) * Back-up battery: CTL1616 * Module 2688