Schatz 49 running fast

term789

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Oct 19, 2016
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I have replaced the suspension spring on this clock.
There is no flutter and the clock runs great.
But is runs fast.
I have a suspension jig and set it up by the template.
I have the balls to the maximum slow setting.
Is the best way to slow the movement to make the suspension spring longer?
 

shutterbug

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Oct 19, 2005
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No, it needs to be thinner. What size did you use? Every .0001" of reduction in the thickness will result in 4 min per hour slower, so make your calculations and get another spring.
 

Harry Hopkins

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Nov 16, 2011
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How fast is it running in 24 hours? Is the fast rate constant? In other words are there times when it seems to keep good time then others when it seems to have jumped ahead? If so then it still might be flutter.. Flutter can be pretty unpredictable and you could easily miss it. If you are certain it is not flutter then you either need to install a thinner spring or thin the spring you have. If you show us a picture of your back plate and tell us what size spring you installed we can help better. Lengthening the spring will not give you the results you want.
 

MartinM

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Jun 24, 2011
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Do the lead balls fully fill all four spheres in the pendulum? Sometimes people get creative when they don't have a proper spring on hand and adjust the weights.
 

term789

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Oct 19, 2016
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I have the Horolovar book and it is plate 1014 which uses a .004 horolovar spring.
I have had a problem with these running fast.
Have you gone down to a thinner spring?
 

MartinM

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Jun 24, 2011
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I have the Horolovar book and it is plate 1014 which uses a .004 horolovar spring.
I have had a problem with these running fast.
Have you gone down to a thinner spring?
I don't believe I ever have.
If it's running too fast to be regulated with the 0.004" spring, somebody likely removed some weight, somewhere.
 

richiec

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Feb 24, 2007
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Did you measure the spring? Is it a real Horolovar spring, some of the replacements are suspect.
 

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