Casio G-Shock GD-B500 Series Green Dial Men 41.5mm G1663 GD-B500S-3 Luigi The optical sensor measures your

The optical sensor measures your heart rate and blood oxygen level and the accelerometer counts your steps

To complement the matte look of the dial

With a smooth topring

Powered by the Powermatic 80 Swiss automatic movement

54" Ips Color Screen

Casio G-Shock GD-B500 Series Green Dial Men 41.5mm G1663 GD-B500S-3 Luigi The optical sensor measures yourA compact G SHOCK in a boldly straight forward design that moves style into the future. The tough digital GD B500 goes smaller and slimmer to meet todays needs, delivering just what you require from a watch in a minimalist design with a futuristic sensibility. With a case measuring just 46. 3 mm in diameter and 11. 0 mm slim, this G SHOCK is significantly smaller than past models. Even this small, it comes equipped with Bluetooth and a step tracker so