I have acquired a Schatz ships clock. It only runs for a few hours when fully wound. Thinking this might be a weak spring, I have dismantled it to measure the spring, then re-assembled it while it was fresh in my mind. Unfortunately the chimes now only ring in pairs with no single 1/2 hour chimes - i guess I have got something wrong! Can anyone please suggest how to rectify the chimes and what is the cause of the short running time please?
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