I can only say that you should go to an AD and try out each watch to see which moves you most. If you're thinking in terms of keeping value, you might want to go on a collectors market and look and the resale value of a particular model.
I just tried a PAM24 Submersible on for the 1st time a month ago and found it was nicer than the scans I've only seen online. The 112 is a base model with caseback display of the PAM 000. The movements may also be the same, I think. There may be differences with the dial and luminescence also as well as the logo on the 000. It may be a question of whether you want to see the movement or not on your watch.
From a personal perspective, I wish I had started with a standard base model. There's nothing quite like the a base.
Best of luck,
-David