Good evening David,
The Rangeman (GW-9400-1CR) is probably the best G-Shock money can buy right now hands down. The watch is very utilitarian you have to love the atomic calibration function which is pretty awesome. One thing I will tell you about this watch which is extremely important for you to do as the operator of this piece of equipment.
You must ensure to properly input the correct Longitude and Latitude coordinates for your location other wise the watch will not function properly.
I have two 9400's the -1 and -4 and I think they ROCK. Welcome the forum and enjoy your G-Shocks they are the BEST watches around the world hands down.