Cool Men's Racer Military Pilot Aviator Army Silicone Sports Watch Cool Men's Racer Military Pilot Aviator Army Silicone Sport Watch Watch Movement: Japan Quartz Case Diameter: 4.5cm/1.77'' (Approx.). Case Thickness: 1cm/0.39'' (Approx.) Total length: 25cm/9.84'' (Approx.). Band Width: 2.2cm/0.87'' (Approx.) Note: three circles inside is not functional, just decoration.