Casio - Baby-G - Urban Glide Series - Pink - BGA180-4B3 Imported Shock Resistant, 100M Water Resistant, LED light with Afterglow, Tide graph (tide level for specific date and time) Thermometer, World Time, 2 Multi-function Alarms and 1 Snooze Alarm, Hourly Time Signal, 1/1 second stopwatch Input range: 1 minute to 60 minutes (1-minute increments), Wave Counter (Keep track of a count up to 999), Full Auto Calendar (pre-programmed until the year 2099) Button Operation Tone On/Off, Accuracy: +/- 30 seconds per month, Battery: SR726W x 2 Approx. Battery Life: 2 years Module 5381, size of case/total weight: 49.3 x 44.0 x 15.4mm / 46g