Casio G-Shock (GBD-H1000-1A7) | Setting time with GPS 

Casio G-Shock (Model GBD-H1000-1A7): How to set the time using your GPS. This is module QW-3475 by Casio.
More about this Casio GShock: • Casio G-Shock (GBD-H10...
Hope this helped!