Features The G-SHOCK has long been known as the watch that pushes the limits of shock resistance and water resistance. Now these models test new limits for battery life. These models include the distinctive G-SHOCK design and powerful G-SHOCK functions plus a design that enables a 10-year battery life. Functions include e-DATA MEMORY for storing URLs and e-mail addresses, 27-city World Time, multi alarms, and other features that come in handy during work and play. Specifications Case / bezel material: Resin / Stainless steel Resin Band Mineral Glass Shock Resistant 200-meter water resistance Electro-luminescent backlightAuto light switch, afterglow e-DATA MEMORYMemory capacity: Up to 40 records for Internet access codes and other data (when there are 7 characters per record), actual number of records depends on the number of characters per recordOther: Password World time29 time zones (27 cities), city code display, daylight saving on/off 1/100-second stopwatchMeasuring capacity: 23:59'59.99''Measuring modes: Elapsed time, split time, 1st-2nd place times Countdown timerInput range: 1 minute to 24 hoursUnit: 1 secondOther: Auto-repeat Multi alarms5 independent multi alarms (4 one-time alarms and 1 snooze alarm)Others: Schedule text (8 characters); pre-alarms Hourly time signal Auto-calendar (to year 2039) 12/24-hour format Regular timekeeping: Hour, minutes, seconds, am/pm, month, date, day Accuracy: ±15 seconds per month Approx. battery life: 10 years on CR2025