enzo said:
a specialised tool is SO much nicer and doesn't bugger up the case. You can actually tighten the back down with some pressure and not worry about never getting it off.
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Cheap alternatives that will work ... sticky balls, or reverse tape any kind of ball with duct tape to make it sticky. Silicon bath accesory suction cups are often very grippy. You can even grab them with slip-jawed pliers after applying them and really get some leverage.
I just successfully used the suction cup method to open the case on my PAM 111H.....It was uncanny how well it fit the 44mm case!!....No scratches, no marks, nothing.... and very easy to re-screw back to the original tightness.
The reason I opened up the back was to re-align the 'E' in the 'OFFICINE' decal because it was extremely crooked and about a half step above all the other letters.
I used a toothpick to slide the 'E' down and did my best to line it up properly.....The decals are self-adhesive.....I realize the Asian 6497 still looks far from the real thing, but at least it's no longer glaringly obvious to the naked eye....it looked pretty bad before and was kinda driving me nuts!
Thanks Enzo for saving me $25 because I was thinking of buying the Panerai tool from Atomix Tools on eBay.
Of course I don't plan on going swimming with my PAM anytime soon
That's what my Seiko Monster is for.