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A vent and questions about sources for cap jewel and incabloc spring


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Hi guys,

I'm working on an Invicta Pro Diver, model 8926, with a NH35A movement.  I bought it to practice on.  I had no trouble removing and re-installing the cap jewels on the balance cock and plate.  But I struggled for an hour trying to get the cap jewels back into the automatic winding works, when suddenly my luck (of not losing the parts) ran out and both the jewel and spring flew off never to be found again.  The jewel is about 1 mm and the spring is 1.7 mm. 

After searching for both online the only thing I can find for a jewel is a bag of assorted jewels; is this what folks do to replace a jewel, buy an assortment and hope one fits??

On the spring, again I can only find assortments and the pictures of the bags of parts don't even show the style that I have.  What do folks do in that case?  Is the only option a donor movement?

I'm already $60 into this watch, by the time I'm done I could have bought a new one.  hahaha.  but what fun would that be?  Thanks. 

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