hello all the old classic analog meters suffer from paint and debris chips off the faces.
These enter the D'Arsonval movement and cause sticking and blocking.
Turn meter on its face, gently tap sides and see if it improves or changes.
Often the debris clogging will fall down to the face and can be see and removed.
I have many similar meters and never had to replace any lytics, the HP 197-0s..1990s were top quality.
Bon chance \
Jon