This lightweight Casio watch combines durability and practicality with a resin case and a flexible synthetic resin strap, making it comfortable for everyday wear. The acrylic glass screen is designed for clarity and resilience.SpecificationsCase size : 38.2 × 35.2 × 8.5 mmWeight : 21 gCase and bezel material : ResinBand : Resin BandWater resistance : Water ResistantPower supply and battery life : Approx. battery life: 7 years on CR2016Glass : Resin GlassStopwatch : 1/100-second stopwatch, Measuring capacity: 59'59.99''Measuring modes: Elapsed time, split time, 1st-2nd place timesAlarm/hourly time signal : Daily alarm, Hourly time signalLight : LED lightLight colour : LED: GreenCalendar : Auto-calendar (set at 28 days for February)Accuracy : Accuracy: ±30 seconds per monthOther features12/24-hour formatRegular timekeeping:Hour, minute, second, pm, date, day