The title of "PAM312 is it genuine" already meant that you have concerns on the watch.
Only you yourself know what price you paid for it and who you bought it from.
Have you done your due diligence?
We're still waiting for pictures and waiting to learn a thing or two.
If it's genuine, we will know what sort of problem exists with this particular model or movement.
If it's a fake, we will know what to look for if we ever encountered one.
Win win situation... but OP missing in action liao...