My meter stop working some time ago and when I tried to have it repaired I was told by more than one source that the parts are no longer available.
It wasn't a show stopper as I several hand held meters.
I agree about the hand meters.
However, as recently as last year I believe the original company, Plaubel, in Germany, still repaired the cameras (esp. the light meter) and they may still do today.
It is a complicated job, but what's wrong is that the wires have gone, and these are always replaceable. The film advance mechanism, if it needs repair, may be another story.
Still, a repair probably costs you 500 or so based on what I read online, which is a lot of monery for a meter which is bested by a hand-held meter.