Hello, Group! It's PAMSDAY at dave's house; and after all these years of collecting, I STILL have a hard time determining the model numbers of the PAMS I have; like this one, I looked at the case back numbers and saw this -- OP6567, which is supposed to be the case model of the watch. Now, I'm just confident I can identify the watch as a PAM! I'll take whatever I can get!! heh! dave: