CASIO 3 years ago Casio ‘Smartwatch’ Quartz Resin Smart Watch, Color:Black (Model: WSD-F10GN) $389.88 Free Shipping Smart outdoor watch with android wearTested to military standard specificationsQuartz MovementCase Diameter: 56.4mmWater resistant to 50m (165ft: in general, suitable for short periods of recreational swimming, but not diving or snorkeling