I received this watch from a friend to see if I could repair it for him. The stem was broken at the narrowest point where the set lever rides. I ordered a stem and tried to remove the broken portion left inside the crown. Not paying attention to the amount of force I was using to unscrew the broken stem, I snapped the stem off farther inside the crown. Now I have nothing to "Grab" onto so that I can remove it. The movement is a Chinese copy of the Venus 175 chronograph movement set inside a re