Casio Baby G Glossy Chronograph Digital Dial Ladies Watch BG1005M-6CR Shock Resistant, 100M Water Resistant, EL Backlight with Afterglow World Time, 4 Daily Alarms and 1 Snooze Alarm, Hourly Time Signal 1/100 Second Stopwatch, Countdown Timer, Full Auto Calendar (pre-programmed until the year 2099) 12/24 Hour Formats, Button operation tone on/off, Accuracy: +/-30 seconds per month Battery: CR1616, Approx. battery life: 3 years, Module 3188, Size of case/total weight: 44.7 x 39.8 x 14.6mm / 42g