Mijn Kundo spacetimer synchronissert niet meer exact met de werkelijke tijd?

How can I fix a Kundo Space Timer wall clock?

kundo space timer radio conjtrolled clock?

ORIGINAL KUNDO JAHRESUHR 400 DAY CLOCK?

Can a Kundo clock be re brassed?

I have a Kundo Space timer wall clock. I have changed the battery and the h?

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to check transitor parts and coil for kundo mantle clock?

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Clocks?

How can I fix my Kundo 400 day clock?