G-Shock Gravitymaster GRB300-1A4 Pro Trek Watches for a more elegant design

for a more elegant design and a better fit to the wrist

BAX100 (Black)

The GM2100RW-1A offers a stealthy black and red finish with a robust metal bezel

Soar to new heights with this modernized timepiece from our Mechanical Collection

Produced using renewable organic resources

G-Shock Gravitymaster GRB300-1A4 Pro Trek Watches for a more elegant designThe GR B300 features a Carbon Core Guard structure, which delivers the shock resistance, rigidity, and corrosion resistance of carbon material used in aircraft fuselages. The carbon fibre reinforced resin case and the seamless bezel design inspired by next generation aircraft come together in a bold and powerful form. Envision the world through a pilots eyes with the flight log memory function for recording current location and time, as well as dual