Re: problem regulating Vostok automatic

Yes, I would not have tried it with a Rolex. Not that I have one.
Fortunately dAz put me on the right lines.

I think if you put the balance spring attach stud back where it was to
begin with, you should be ok, as dAz said.

The regulator has two brass dots or rivets. On the other side of the
regulator arm are a couple of pins that cage the balance spring and
effective change the effective length of the spring, altering its
resonant frequency. A very small movement of the regulator (.1 mm) can
have a big effect on the daily rate. Referencing an atomic radio clock
helps, though a regular quartz watch is good enough.



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Relevant Pages

  • Re: How to adjust a mechanical watch?
    ... The arm you have arrowed holds the end of the balance spring. ... The other one with the two rivets is the regulator. ...
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  • Re: A more readable chronograph?
    ... In message, dAz writes ... expect a tail on the regulator for the price point this movement is made to. ...
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    ... After that you have to move the actual regulator as daz said. ... From what you say, that screw won't turn more that 80 degrees or so, so I have to move the actual regulator. ... Is it where the end of the hairspring is attached to the end of a small lever with a dimple in it? ... Tony Stanford. ...
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