Welby 400 Day Clock by Kundo with Pearlescent Plastic Dial

I repaired this clock labeled “Welby” made by Kundo. The dial is plastic with a pearl-like finish. I repaired a similar one labeled “Kundo” a few years ago. It was made in the 1950s and has a locking pendulum and leveling discs on the base.

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Repair job 7588. I polished the pivots and replaced the suspension spring. It has unit 5E and a .0024 inch thick suspension spring.


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  1. Regarding your welby 400 day clock. Hi. I have a similar clock. It was stored 35 years by parents. Now I am trying to wind it except it seems froze up. There is a latch that seems to be locking a gear from turning except that latch does not seem to move.

    I’m trying to ask if there is a certain way that needs to be followed to wind it. Can you please advise me ? Thank you .

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