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September 20, 2012 at 1:15 pm #48379aruthaParticipant
So here I go
I have taken apart a small ladies wristwatch, it is a small Avia 15 jewel movement.
I have two questions so far
1. How on earth do you know if the pivots need polishing? They are so small I cant even see them very well with a 10x Loupe! 😯
2. The only thing wrong that I have been able to find is one of the pallet jewels are missing. I was expecting to find it hiding in the movement somewhere but no, it has vanished. I found someone selling a bag of 60 assorted pallet jewels on e-bay for £7.00 including postage, I know its a gamble but it does say there are all sizes from ladies watch up to pocket watch sizes. My question is this, if I do find one to fit, how do I alter the angle on the pallet jewel if it is wrong/or can it be done?
I did have a couple of pocket watches I could have started on but I though lets try the hard stuff first i dont like making life easy for myselfSeptember 21, 2012 at 7:53 am #52243Bob TascioneModerator
Yes those are small pivots! 10x should give you a pretty good idea of their condition but higher magnification will really help. Those microscopes that we’ve discussed in other threads are nice for that type of inspection work. Unless a jewel is damaged chances are good that they are in decent shape. Always good to check though.
Avia is a big time UK company that was bought out by one of the biggies but can’t remember which one so you should see a lot of these watches over there. You can try finding and fitting a pallet jewel from an assortment (that can be tough) but usually the best and quickest way with these Swiss movements is to order a new pallet with jewels or salvage one from an old movement. Can probably find a parts movement from Dashto or others for just a few bucks from which you’ll have a slew of parts for future repairs as well. You may get lucky with the assortment though. I have used these assortments in the past with some success but usually for older Swiss pocket watches. I don’t know what movement you have or which movements Avia used but it’s probably a very common one. There’s a good chance the factory name or symbol is on the movement. Look on or near the balance cock foot or somewhere under the balance rim for a symbol or letters. If you have a Bestfit catalog you can match the symbol to one in the book or match the setting mechanism to one of the setting mech. pics in the book. If you don’t have a Bestfit cat. and can find a symbol or letters I can try to identify it for you if that will help.
BobSeptember 21, 2012 at 12:12 pm #52244aruthaParticipant
Thanks for the info and help Bob, this is just a piece for practise so I will try and get one of the jewels to fit from my multipack. I will let you know how it goes
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