Casio G-Shock GA010 Series Men's Digital Watch 52mm Case Diameter Bio-based Resin Bezel Black Bio-based Resin Band. The digital GD010 delivers handy features like world time and stopwatch as well as a high-brightness LED light which can be easily accessed from the large button on front of the case ensuring visibility even in the dark. Made with bio-based resin and equipped with a 10-year battery this G-SHOCK is great if you want to reduce environmental impact. Specifications for Casio G-Shock GA010 Series Men's Digital Watch: Manufacturer: Casio Size: One Size Gender: Male Battery Type: Lithium Metal CR2032 Fabric/Material: Resin Case Diameter: 52 mm Water Resistance Level: Water Resistant Water Resistant Mark: 200 m Weight: 65 g Battery Life: 10 Years Lens Material: Mineral Glass Weather Resistance: Shock Resistant Age Group: Adults Features of Casio G-Shock GA010 Series Men's Digital Watch Shock Resistant Water Resistant to 200 Meters 10-Year Battery Life Stopwatch Countdown Timer 5-Alarms LED Super Bright Backlight 12/24 Hour Format World Time Package Contents: Casio G-Shock GA010 Series Men's Digital Watch Casio GD-010-1CR: G-Shock GA010 Series Men's Digital Watch 52mm Case Diameter Bio-based Resin Bezel Black Bio-based Resin Band