Ok...
The movements Panerai uses in its manual wind watches were originally pocket watches which were big and rugged movements. They were made to be rugged and durable. The cases that Pam reps are in are GREAT cases and if you have greased the orings etc. you have a watch that can just about withstand anything! Now, Asian movements are something else that I cannot comment on, but should be nearly as rugged once looked at and/or serviced by someone competent. No watch unless its a plastic digital watch is meant to be "banged" around, but these big heft Pam movements (Manual wind) are solid workhorses that can take a lot of abuse within reason. They were, afterall, in OEM form, made for the military and "good" reps are not far off from the real thing save fit finish and other minor(imho) things.
Put it on, forget about it, and do what you like.
If you pay a couple thousand for it, think twice about it...It might not be worth dinging up...