You mention repairing the movement? That’s going to be a issue, early quartz movements are notoriously difficult to repair or replace due to them being long since obsolete, also the hands need attention, you are right to try to keep it cosmetically original, but as you can see, the lume is falling out and unless stabilised will cause issues in the movement, there are specialist relumers that can make good and blend with the dial plots to match.
Nice watch though.
I can’t quite make out the movement number, its a AS something, (896121?)as seen near the bottom of the movement, I would start by Googling that and seeing how difficult it will be to source or repair.