In addition to never worrying about battery juice, this rugged sport watch is always accurate, thanks to self-adjusting atomic timekeeping technology. An afterglow backlight offers an easy-to-read display of data. Bracelet Dimensions: 9" long; 23mm wide Model No.: GWM5610-1CR Special Features: Shock-resistant structure; powered by light (natural and artificial) for a free and limitless power supply; radio-controlled atomic accuracy; 1/100th-second stopwatch for measuring elapsed and split time; world time; countdown timer Features: Digital, Water Resistant, Quick Ship Jewelry Closure: Buckle Power Source: Ecodrive Watch Movement: Quartz Water Resistance: 200m Band Color: Black Dial Color: Black Case Thickness: 12mm Case Width: 43mm Band Content: Plastic Case Materials: 100% Corn Resin Country of Origin: Imported Quick Ship items ship directly from the manufacturer within 3 to 5 business days.