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Help With Elgin 18S Jewel Replacement

sstakoff
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sstakoff WRT Addict

sstakoff

Posted
Posted

Hi-

I'm new to this forum and looking forward to participating. To start off, I am in need of some help/advice.

Working on an Elgin/18S, Grade 10 - s/n 1911886. The upper fourth wheel jewel has been shattered - it's completely

gone. I believe this jewel was rubbed in, but I don't think I can replace it with same - the "lip" that would be used

to secure the jewel is damaged :(. I believe the only realistic way forward is to replace with a friction jewel.

 

My specific questions:

o The pivot size is 0.31mm --- what size jewel hole would I replace this with? Would it be 0.32mm???

o I have an old Marshall jeweling set, and in order to fit a friction jewel I would need to use the reamer labeled #10.

I have left my home for the day and wanted to order the replacement jewel today. Unfortunately I'm not certain as to

what outside diameter the #10 reamer corresponds to :( If someone knows that would be great - else I will just measure

it tonight when I return. I think I would need to order a jewel with outside diameter 0.01mm larger than the reamer size???

 

Many thanks!

 

Stu...

 

bobm12 Distinguished Member

bobm12

Posted
Posted

Hi Stu,

 

Interesting question and since I've been entertaining to start working with my jeweling set, I will anxiously wait for the experienced people to chip in!

 

cheers,

 

Bob

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