I visited this store to have batteries replaced in...

I visited this store to have batteries replaced in three wristwatches, which the store technician said that he could do. Unfortunately, the tech didn't have the correct tool for one watch (flat-blade screwdriver); the next watch he was able to open, but could not figure-out how to remove the battery retaining clip; the third watch he ruined by breaking-off two of the four retaining screws when he over-tightened the watch back (he sent me home with the parts to my father's watch in a baggie)!
This is not the place to bring a watch for battery replacement!