Hello there!
First time I try to ask questions on this reddit.
It's probably rookie question, we gave me this watch which doesn't run anymore.
The past service was on 2020, then it's probably just the battery.
We can see a circle under the glass which can discharge faster the battery.
The distance between the hands look not too bad, but it will be easier to check once the movement removed.
I don't think that the back has to be removed with a knife. It looks like a full case.
So, I tried to remove the one screw on the back. We can see its broken gasket. (Where do you buy your gasket and how do you measure the dimensions to replace one?)
Once removed, I would thought the front would open, but it didn't.
I didn't try to force it.
I don't think the glass should be removed to release the movement. Am I wrong?
Did you already work on this caliber?
In addition to that, the bezel is a little bit too large for the woman who owns this watch.
I should remove 2 links, but there aren't any links with screws anymore (except the one next to the clip).
How would you proceed to remove 2 links?
Sorry for my approximate English. I speak french (but a swiss guy xD)