LCD display with time, seconds, day and date; functions include chronograph, lap time, alarm, military time and backlight with delay; blue silicone strap with grey underside; buckle closure Set comes with blue mini Bluetooth wireless speaker; built-in rechargeable battery; includes USB charging cable Quartz Movement Case Diameter: 38.5mm Water resistant to 50m (165ft: in general, suitable for short periods of recreational swimming, but not diving or snorkeling