Limited one year warranty<br/>Tough Solar Power<br/>Shock Resistant<br/>200M Water Resistant<br/>Full Auto EL Backlight with Afterglow<br/>Moon Data (moon age of the specific data、 moon phase graph)<br/>Tide Graph (tide level for specific date and time)<br/>World Time<br/>31 times zones (48 cities + UTC)、 city code display、 daylight saving on/off<br/>4 Daily Alarms and 1 Snooze Alarm<br/>Hourly Time Signal<br/>1/100 second stopwatch<br/>Measuring capacity: 23:59’59.99”<br/>Measuring modes: Elapsed time、 split time、 1st-2nd place times<br/>Countdown Timer<br/>Measuring unit: 1 second<br/>Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)<br/>Battery power indicator<br/>Power saving function<br/>Button operation tone on/off<br/>Full Auto Calendar (pre-programmed until the year 2099)<br/>12/24 Hour Formats<br/>Accuracy: +/- 15 seconds per month<br/>Storage battery: Solar rechargeable battery<br/>Approx. battery life: 9 months on full charge (without further exposure to light)<br/>Module 3200<br/>Size of case/total weight<br/>GW7900RD 52.4 x 50.0 x 17.7mm / 71g<p style='text-align:center'><img src='https://s3-ap-southeast-1.amazonaws.com/media.mydress.com/media/brand/casio/GW-7900RD-4ER/01.jpg'/></p><p style='text-align:center'><img src='https://s3-ap-southeast-1.amazonaws.com/media.mydress.com/media/brand/casio/GW-7900RD-4ER/02.jpg'/></p><p style='text-align:center'><img src='https://s3-ap-southeast-1.amazonaws.com/media.mydress.com/media/brand/casio/GW-7900RD-4ER/03.jpg'/></p>