Nailed it. Jetta, probably 83
Clocks tend to work in 4 out of 5. Most frequent failure is 2 blown caps on the power input, and since it’s 80’s, they can be replaced. Sometimes a part is missing like the second hand. If I can get the clock working, I shoehorn the sylvania ZEVO 164 led lamps into the illumination hood, clean it up, stick it in the box, and let it run for a week to make sure it’s good. I’ve got one now that loses a minute per day and haven’t seen that before. May be a mechanical problem with the set knob dragging on it.
Same clock module seems to used in VW, audi, merc and possibly some bmws.