What are the possible reasons that the Kundo clock won't work?

[bundyboy]

Hello,

what are the possible reasons that the Kundo clock won't work?

until the moment when the clock stopped completely, it was working, but it was late.

But also if I removed the battery for about 10 minutes, and later put the battery back in

then it would work normally for a while, but it would start late again after some time.

now it is not responding at all.

the only thing I did put a new capacitor. but unfortunately nothing has changed.

This is kundo clock maybe 40 years old which plays sound every 30min and full hour.

[url=https://ibb.co/hDMZq1m][img]https://i.ibb.co/cDvCmXr/1000002612.jpg[/img][/url]
[url=https://ibb.co/kKB24Yy][img]https://i.ibb.co/p2wjfCP/1000002630.jpg[/img][/url]

Thank you

[AndyGSi]

Welcome to the forum.

Picture links don't work you need to attached them using this.