Things You'll Need
Instructions
Check the back of the pocket watch for a small lip that would allow for prying, which means the watch has a snap back. Place a rounded case knife under the lip and apply pressure to pry off the back. Note that the back will come completely off the bezel (front). Replace the back by lining up the pin on one piece of the watch with the hole in the other and pressing to snap them back together.
Check for hinges near the bottom of the watch, near where six o'clock shows on the face. Place the case knife between the hinges and apply gentle pressure until the two sides click apart. Note that they will remain attached at the tops. Press the hinges back together to close.
Twist the back gently in a counterclockwise motion while holding the bezel tight. Note that if the back comes off with this twist, the watch has a screw back. Return the back by simply screwing it back into place, using a clockwise motion.