How to repair the face on an Acroprint 125 and 150 punch clock

The minute hand is held on by a screw, then the hand, then a locking washer.  Remove them.
The hour hand is a friction sleeve, pressed on to a brass shaft.  The hour hand's diameter is adjustable.  It's very slight, but you can adjust it.
Remove the minute hand, keep the parts in order:  Screw/hand/washer.
Use a wide flat blade screwdriver and pry up the hour hand.  It is not delicate.
Approach the ring from two sides, using just one screwdriver, twisting it to wedge it off.
Using a standard pliers, put the 1/2" shaft inside the pliers (at the base, the round area) and give it a slight crimp.  That will tighten the fitting.
Press it back on (it's best to set it for an easy to set time like 2, 2:15, 2:30, 2:45, etc.
Replace the minute hand.