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Doreen

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  1. Thanks
    Doreen got a reaction from Nucejoe in Helvetia Pilot watch caliber 51-10   
    Thank you very much for all your good advices and help.
    Im so happy, It seems that I finally managed to poise my first balance wheel. That will call for a toast tonight. I never thought  I will be able to go so far with this (on the watch repair field) especially that my hands are not quite steady. My biggest problem is when it comes to adjust the hairspring coils. You really need to have very steady hands otherwise everything can be ruined in a blink of an eye. 
    As for the Levin tool level bubble; I’m still waiting for the high precision level bubbles that I order to arrive. Than I will check the original bubble leveler from the tool against the new one and see if I will have any differences between them. If I found any difference between them I will probably replace the original one with the new one or maybe I will attach the new one one to the tool against the old one. Will see...
     
  2. Like
    Doreen reacted to Marc in Helvetia Pilot watch caliber 51-10   
    I wouldn't like to comment on your theory reagrding the length of the H/S, but what I can tell you is that the H/S is twisted where it enters the stud such that when the stud is mounted in the cock, the H/S will no longer be sitting flat and parallel with the balance wheel, but will in fact be canted steeply such that the outher coil opposite the stud could well be rubbing against the underside of the cock.
    This will shorten the effective free length of the H/S resulting in too fast a rate.
    As the point of contact between H/S and cock is after the regulator it also effectively isolates the regulator, making it ineffective.
    You need to sort out the twist at the stud before you try anything else.
  3. Like
    Doreen reacted to nickelsilver in Helvetia Pilot watch caliber 51-10   
    You're missing a screw in the balance, that'll speed you up a few hundred seconds.
  4. Like
    Doreen reacted to nickelsilver in Helvetia Pilot watch caliber 51-10   
    Should have included a pic. Screws will always have opposing screws.

  5. Like
    Doreen reacted to Nucejoe in Helvetia Pilot watch caliber 51-10   
    Some good may come out of missing another screw. Arrange screws so the two missing are symetricaly on opposite side. This would minimize the imbalance, it would run right face up or down, not so right pendent up or down. 
    I may have some screws for this caliber, will dig in my bag of tricks.
  6. Like
    Doreen reacted to nickelsilver in Helvetia Pilot watch caliber 51-10   
    It's highly likely you will find a screw that fits if you have a similar balance to take from. You will want to find screws that are approximately the same size, then you will want to get a basic timing check to see where you stand. Check it with the movement flat, if you are running very fast or slow you will want to add weight with timing washers or remove weight by cutting the screws; here you will want a poising tool to see which screw to add/remove from as you will most certainly be out of poise after replacing screws.
  7. Thanks
    Doreen got a reaction from Nucejoe in Helvetia Pilot watch caliber 51-10   
    The hairspring along with all movement was cleaned and lubricated properly. Nothing in the movement is sticky anymore. 
    I will have to check again the condition of the hairspring along with the balance and fork pallets. Perhaps is something that I’m missing there.
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