I have inherited an constellation chronometer electronic f300hz from 1976 that does not work with a new battery. It was last serviced and repaired in 2009.
It also have a damaged/scratched glas, visuable on the picture.
Is it worth to repair and how much does it cost to replace the glas?
These are mine and I got the blue dial back from repair/service today, so obviously I think yours is worth repairing. It looks to be in nice condition. Is it gold? Is the bracelet gold?
I’ve two suggestions. First, you probably don’t need a new crystal. Get a tube of Polywatch and polish the scratches out of the crystal.
Second, let us know where you’re based and someone should be able to recommend a watch repairer who can service and repair your watch.
I have read that both Paul and Rob does magic and are skilled with this type of watches.
I don't know where you live/stay, but there are a few more skilled watchmakers that can help you.
And here is a Forum member that helped me out when I was looking/learning.....
Cheers (again) ! @davidswiss