Good Morning WSmith7069,
I don't know how much you know about G-Shocks but I can tell you just by the model number you typed that your watch is not atomic. All models which are ATOMIC will have the "Whiskey" identifier in the alphanumeric code for example "GW-9400-1CR THE RANGEMAN," "GW-A1100-1A3 THE GRAVITY DEFIER," AND "GW-3500B-1A9 THE COMBAT GRAVITY DEFIER." I am not trying to be a jerk, just trying to educate you in our hobby. And another thing most Atomic G-Shocks will say somewhere in the faceplate "Multiband-6 and some of the old one will say Multiband-5."