This old gold filled pocket watch case had a broken hinge. After removing the movement, I drilled out the pin, marked the hinge placement and ground off the damaged tube.
The next step I laser welded the new gold tube in place.
I fed through a gold wire and soldered the ends.
Gave it only a light polish to remove as little gold surface as possible.
Put back in the movement and replaced the crystal.
Atlas Jewelers Bench Talk 