Chosen Solution
How do I remove a ASA dial from a Fuji Film Fujica ST605N camera?
The ASA dial is screwed down by a single screw in the middle of the dial. Using plastic rod or wood dowel that is just the same diameter of the head of the screw which then has a piece of rubber attached to its end you can fashion a friction screwdriver to unscrew the slot-less screw. Here is the service manual for the camera: Fujica ST605 service manual it’s exactly the same as your ST605N.
