Pin vice?
Nope...these are tools for replacing jewels on vintage watches. Before friction fit jewels were used, they used to be bezel set (also referred to as " rubbed in" jewels in some circles). So a bezel or lip is cut into the plate, and the jewel is inserted, then the lip burnished to hold the jewel in the plate. This set of tools is used to open and close existing bezels when swapping these old jewels.