Chinese movement adjustment

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lee3lions

·Mar 20, 2021

I believe this is a Chinese movement. any ideas on which ‘arm’ to move to regulate the time?
Also, which way to go faster/slower?
Thanks in anticipation.

 

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Professor

·Mar 20, 2021

lee3lions

which ‘arm’ to move to regulate the time?

the one with two brass dots.

lee3lions

which way to go faster/slower?

clockwise faster, counter clockwise slower.

Careful that the "stud support" ,the one with the screw in the end, doesn't move.

 

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JwRosenthal

·Mar 20, 2021

Professor

Careful that the "stud support" ,the one with the screw in the end, doesn't move.

That’s what you think! 😲

 

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Canuck

·Mar 20, 2021

A indicates a MOVABLE stud carrier.
B indicates move the regulator that way for slower
C indicates move the regulator that way for faster

 

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Professor

·Mar 20, 2021

Perhaps you misunderstood.

Professor

Careful that the "stud support" ,the one with the screw in the end, doesn't move.

To reword it a bit .
Be very careful that the stud support does not move while you are making your adjustments.
The stud support is the arm with the tiny screw in the end.

Of course the stud support can be moved, I'm pointing out that it should not be allowed to move.

Several of my older watches have fixed stud supports, which makes adjustment much easier so long as the balance spring is not worn or damaged.

 

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lee3lions

·Mar 20, 2021

Many thanks for your replies!
I’ll be giving it a try later.

 

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sokard

·Mar 20, 2021

You will get better results if you use a timegrapher to check its actual condition.
Messing with the regulator pins without a timegrapher could be catastrophic.