Simple in design but high in performance, this watch runs on solar power so you never have to worry about a battery change. A stretchy expansion strap makes it easy to take on or off without the need of a clasp. Brand: Casio Dial Color: White Strap: Stainless steel Movement: Quartz Water Resistance: 50m Case Width: 25.2mm Case Thickness: 10.72mm Bracelet Dimensions: 14.1mm wide Model No.: LTPS100E-7BV Special Features: Powered by light (natural and artificial) for a free and limitless power supply; date display Jewelry photos are enlarged to show detail.