Casio Collection Japanese Made Watch With A Black Resin Strap, Blue Coloured 46.5 x 40.9 Case & Digital Display. The W-210-1BVEF features, Dual Time, Auto-Calendar and a Stopwatch. Not only does it have these functions but this timepiece comes with 12/24 hour format, has an hourly time signal and is 50M water resistant. Water Resistant: 50 Metres Water Resistant Accuracy: +/- 20 seconds per month Alarm Function: Daily Alarm: Sounds each day at the time you set, Hourly time signal: The watch beeps every hour on the hour, Snooze function Auto Calendar: Once set, the automatic calendar always displays the correct date Band Material: Resin Battery Life: Approximately 10 years Date and Weekday Display: The current date and week day are displayed on the watch face Date Display: The current date is displayed on the watch face Dimensions: 46.5 x 40.9 x 11.8 mm Dual Time: Simultaneous display of the current time in two different time zones. Display Illumination: LED light, With afterglow Resin Glass: Resistance against breaking Stopwatch Function: Measuring Capacity: 24 hours, Measuring Modes: Elapsed time, split time, 1st-2nd place times, Measuring Unit: 1/100th second