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Timing adjustment


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I have a question regarding adjustment of mechanical watch timing.

I purchased a new Vostok Amphibia which upon receipt would gain approx 20 second's a day. I have been trying to regulate this to give better timekeeping.

A first attempt saw this go to losing 30 seconds a day, I have improved it over the last couple of goes but the adjustment requires such little movement that it can quite easily go from +30 to -30 with the smallest of movements!

I am also aware that the movement probably requires a period for running in.

Is there a secret to moving the adjuster?

 

Alan

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Tricky is not the word I used!

Just found an app for the phone - Clock Tuner, looks blooming useful. Just laid it with the mic end on the watch case so it can pick up the ticks.

Telling me it's running at 19807 Beats Per Hour, don't know what it's supposed to be but at least it can show how far it's been wound up or down!

 

Alan

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Yes gentle movements on the adjuster.

+20 seconds is probably not too bad, to really improve the watch it would need basically stripping down and re-polishing the pinions, possibly using jewels instead of holes in the actual baseplate, the gear teeth polished, the balance poised and the lever jewels tested for accurate geometry for impulse and locking

This is how base models are improved on back in the good old days! 

All the best with it!! :) 

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use a wooden toothpick or similar when doing the adjustment and also consider that even if you don't see any movement just feeling the contact will probably be enough for a small change to have taken place - gentle touch (TO THE MAXXXXXXXX :tongue:)

 

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