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jewel in balance cock


gary17

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hey gyys 

Is it possible to get just the top jewel for a balance cock, plus the brass contraption that keeps it in? If so, Can i get one for a omega 620, cousins want £127.00 for just a new cock. So yer can see why i am asking.

cheers

gary

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Just the end stone, or the one with the hole as well?

end stone you can measure the bottom one, which should be the same, abs get a generic replacement. 
 

The shock spring you may have to get an assortment and hope one fits...

 

unless another member has a spare. 

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hey tudor

Tis is what i have 3 of them tpo be precise. Just having a clear out and come across a bag of old 620 omega gear so started to put them together until i came to the balance the three i have are all the same condition. Any hope?

IMG_20201023_211521.jpg

IMG_20201023_211528.jpg

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Yer thats great but which ones? the numbers i have do not correspond with cousins number.

Upper and lower i have 1342 or 72204401342.

So is there a way of telling which ones i need to order? (there not cheap) or is it a case of suck it and see.

cheers

gary 

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In the pdf I posted above look up cal 620 (third line up from the bottom of page 1)

Jewel hole is 311.75

End stone is 222.11

Spring is 270.02

Check these part numbers in the relevant sections of Cousins web site on the link that I posted.

2 hours ago, gary17 said:

Upper and lower i have 1342 or 72204401342

not at all sure what these numbers refer to, where did you get them from?

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hey marc of the worksheet.

Balance cock is 1030 or 7220601030

balance with hairspring regulated 1327 0r 7220601327

regulator 1331

regulator pointer 1332

two piece regulator       1333

etc

Its an omega caliber 620 worksheet from cousins documents.

cheers

gary

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