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Zodiac "do not open" barrel

limpnoodle
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limpnoodle New Member

limpnoodle

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Hello, I just started in on my next project which is a zodiac aerospace gmt. When disassembling the movement (zodiac caliber 75) I saw that the barrel says "do no open" on it. Has anyone had any luck attempting to service one of these barrels? The mainspring definitely needs some work but I don't want to risk damaging anything without being able to source a part. Any help would be appreciated. 

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limpnoodle New Member

limpnoodle

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Unfortunately I do not have the skill yet to create my own lid. I decided to clean everything up and to hope for the best with a 60 year old main spring. Surprisingly the amplitude is not terrible! For now I think I'll leave it be and try to look for a replacement.

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    • dnhb
      Is this a 'hack' ?

      By dnhb · Posted

      The plate is OK, thanks. It seems the answer to my question is that this is a 'hack' & for me another reminder that in general, one won't be the first person to be tinkering with an old timepiece!. As you day, I've been fortunate to have gotten some good advice and, just as important, encouragement. I've been lucky then not to have the balance spring break as a result of my novice 'ministrations' - but I did remember to 'stroke' rather than bend per se. The clock is of sentimental value to the owner so I'm relieved to have now got it running to time with the support & encourage of forum members like yourself.
    • Neverenoughwatches
      Blew it with a coil

      By Neverenoughwatches · Posted

      Thanks ww, its maybe not as much of a bodge trick that i thought it was. 
    • oldhippy
      1st Post

      By oldhippy · Posted

      Thank you for your introduction and welcome to this friendly forum. We all look forward to your contributions and continued involvement.  It would be nice if you told us a little about yourself.
    • oldhippy
      Intro

      By oldhippy · Posted

      Thank you for your introduction and welcome to this friendly forum. We all look forward to your contributions and continued involvement.  Can we help with what you are trying to  figure out? 
    • watchweasol
      Blew it with a coil

      By watchweasol · Posted

      In think you are effectively shortening the coil by shorting out damaged tracks. In my case as long as the continuity was good and the resistance not too greatly affected it should be ok .  One was on an era  movement,
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