Features: Unique solar power. Great watch with analog and digital dual time display. This wristwatch have multiple functions, including Backlight, 12/24H Format, Alarm Clock, Month and Date, Chronograph, Hourly Chime. This watch is very sporty, you can wear it to work and play. Do not worry about water, this wristwatch is 50 meters water resistant. (Please don't press any keys underwater)