Vital danger to be aware of when working on a Seiko Kinetic.

When replacing the capacitor/battery of a Seiko Kinetic watch it is necessary to remove the pendulum that swings to create the electricity to charge the rechargeable capacitor.
The pendulum is fixed by a screw with a very thin slot.
If that screw is pressed down while it is being removed it will push the hands of the watch into the crystal, and the watch will be ruined.
It is vital to only turn the screw, and not apply pressure downward.
The slot of the screw too thin for most screwdrivers, and I either use a knife sharpening stone to shave off the sides of a precision screwdriver ( I like Wera brand screwdrivers ) or I use a razor blade.