This Casio Protrek Digital Watch for Men is the perfect timepiece to wear or to gift. It's Black 40 mm Round case combined with the comfortable Black Plastic watch band will ensure you enjoy this stunning timepiece without any compromise. Operated by a high quality Quartz movement and water resistant to 10 bars, your watch will keep ticking. This solar powered watch recharges itself in any kind of light,This solar watch does not require any battery replacement. The watch has a calendar function: Day-Date, Solar Powered, Stop Watch, Compass, Altimeter, Alarm High quality 21 cm length and 22 mm width Black Plastic strap with a Buckle Case diameter: 40 mm,case thickness: 12 mm, case colour: Black and dial colour: LCD. Additional features include Resin Band, Mineral Glass, Shock Resistant, 200-meter water resistance, World time, Stopwatch, and Timer.