Casio Men Analog-Digital Japanese Quartz Watch AQ-S810W-3AVDF

100 M Water Resistance Casio watch featuring Shock resistance - Tough Solar Power with battery indicator, and power-saving function. Approximate battery life: 10 months on rechargeable battery (operation period with normal use without exposure to light after charge) 23 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) World Time (31 Time Zones / 48 Cities with coordinated Universal Time) - Daylight saving on/off & Home city/World Time city swapping) 1/100 Second Stopwatch (Measuring Capacity: 59'59.99") 2 Countdown timers, which can be used during interval training, alternating between two different paces).5 Daily Alarms with Hourly Time Signal.Auto-calendar out until the year 2099, the watch does not have to be adjusted for the number days in month even leap year until 2099.Mineral Crystal