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Posted

I’m new here. I bought the anniversary clock and am trying to get it working. I observed the body of the clock the spring cable of the pendulum seem fine.
1. I tried to rewind the clock counterclockwise (not sure it is correct), the tension is so great and bounced back when releasing the key. 
2. Not sure if the spring for the clock body works since I’ve never heard any tick tock.

That was a start, any advices?

5166B846-1E57-44EB-85E5-52DB222BCAC5.jpeg

Posted

This type of clock is the sort many clock repairers do not like to repair. The first thing I need to see is the suspension spring. That is the long thin wire at the back. I need to see the back plate and movement as well. Can you take good clear photos and post them.

Dick, as a new member we like new members to introduce themselves in the correct place in our friendly forum.

Thanks.

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Posted

Hi Dick and welcome to the forum.  With 400 day/anniversary clocks there is no discernable  tick tock as on normal mechanical clocks, The mainspring is small but very powerful driving a clock such as these, The energy consumed by the clock when running is very small hence the name, It can run for 400days or be wound once a year (anniversary). The rotary pendulum hangs on a thin flat wire connected to the escapement fork which moves back and forth in tune with the pendulum releasing the escapement. These are simple to work on and a pain to set up and must be set dead level for them to work.  As mentioned we need pictures of the back plate to determine the model of the clock  Ok its a Kundo but there are different models of Kundo.      Cheers

Posted

I have serviced/fixed many.400 day/anniversary clocks over the years. They are a real challenge because everything has to be perfect for them to run and are expected to run for 400 days with a single wind. The one thing that must be absolutely correct is the suspension spring. It must be perfectly straight with no kinks an also be the correct strength. If the spring is touch too strong or weak and you will just run out of adjustment. I really recommend this book which is my bible with these clocks.

Horolovar 400-Day Clock Repair Guide

Terwilliger (Charles)

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