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Repairing a Nirvana Pocket Watch


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Set out to clean a Nirvana Pocket Watch and found a few problems. The first was a broken catch on a mainspring. The second was a broken screw in the mainspring arbor, the third was a worn lower balance jewel and its cap jewel as well.77b09535d2f6e0ec55e48c47d016c41d.jpgbd49d6e7a1aa35c621c618b23f6dc116.jpg

The spring needed to be heated up an the end bent to create a hook. The screw on the arbor broke and I needed to use a lathe to drill it out.

9a0d33692ac9517a3f5a82d969af9aba.jpg0309b2a36df6147fa50bee1921ad8337.jpg4cd86a3463eb2e92b248d07609f8da72.jpg

Then I found a worn out lower balance jewel and the cap jewel as well.1bd6d424cfff80ba84554196618b4dd5.jpg8f246070eeed9529df9851094fafcac3.jpg

Punched it out with my seitz jeweling set and opened up the lip and found a replacement jewel.f13adb8784435486d6b6309293bd58f0.jpgf114f0fea8494d4e43910b998a22fa05.jpg0ae2365e6fa583f99f7f057ee0e896b3.jpg2907fab582240f296723d27102a17bed.jpgd3b536b605f0764b9724cd36c1bf8c6c.jpg48b4a1df42add7e655c6791e67c5e777.jpg5f31f52502782e2699fea2617f2d1965.jpg

Then I found the right cap jewel and pressed it in and reassembled the watch9148da5987016660233f1bdcf924b994.jpg6ade66bb4b62675056923e78674540d0.jpg

Put it on my eTimer and regulated it. Not a bad result for an old watch.eeff2dadfc56deae35bfc2092438b7ae.jpg34eb4bb2538da3649d1a938021a632f3.jpg9f8970cd10ba744a4149fe66ea2a0a03.jpg

 

 

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    • 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.
    • Thanks ww, its maybe not as much of a bodge trick that i thought it was. 
    • 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.
    • 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? 
    • 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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