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Jewel caps

Shane47

By Shane47
in Watch Repairs Help & Advice

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ifibrin Super WRT Addict

ifibrin

Posted
Posted
12 minutes ago, Shane47 said:

I’ve take part a cap jewel.  ( pic below). Do I need to remove the inner jewel? If so how.  If not how do I clean the other side?  62758280-529E-421C-96EF-6AE9ED03AA90.thumb.png.cc47c1a7cd3838789e23bd50c9a71aae.png

You CANNOT remove the hole jewel from the metal housing. In order to clean it you have to use ultrasound and a cleaning solution, or floss it with a thin strand of hair. If you have stuff stuck in the underside, in between the metal housing and the hole jewel, you just have to hope for the best with ultrasound.

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JohnR725 Distinguished Member

JohnR725

Posted
Posted
4 hours ago, ifibrin said:

You CANNOT remove the hole jewel from the metal housing.

I've seen one come out at one time so either manufacturing defect or somebody really enthusiastic yes it can come out. But if it does come out you might as well throw it away.

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VWatchie Distinguished Member

VWatchie

Posted
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6 hours ago, ifibrin said:

In order to clean it you have to use ultrasound and a cleaning solution, or floss it with a thin strand of hair. If you have stuff stuck in the underside, in between the metal housing and the hole jewel, you just have to hope for the best with ultrasound.

I've had good results cleaning jewel housings in my 70 year old Elma cleaning machine, and when necessary, with a fine paintbrush and hairspring degreaser. I really don't think "you have to use ultrasound and a cleaning solution".

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ifibrin Super WRT Addict

ifibrin

Posted
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5 minutes ago, VWatchie said:

I've had good results cleaning jewel housings in my 70 year old Elma cleaning machine, and when necessary, with a fine paintbrush and hairspring degreaser. I really don't think "you have to use ultrasound and a cleaning solution".

I once managed to wedge some rodico in the cavity on the underside of the chaton-holejewel. Since it was between the metal of the chaton and the underside of the hole jewel, I was unable to remove it even under ultrasound. Couldn’t get it to dissolve in benzine or any solvent.

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Shane47 Member

Shane47

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Well used the ultrasound and work beautifully,  the only problem was I lost the cap jewel.  Which was odd since I had it in a a small metal wash backet with top locked.  I looked everywhere, with high powered flash lights and the highest magnification I had.  And nothing. So it must have been made of sugar and the the thing desolated, lol.  Also I know this has been asked probably a thousand times but when oiling why is it put on the flat part of cap stone and not in the bearing then put the cap jewel on top.  Just curious.

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JohnR725 Distinguished Member

JohnR725

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Posted
1 hour ago, Shane47 said:

small metal wash backet with top locked

Usually the small metal baskets have an edge on the top or the lid goes on. Look really carefully on this metal strip were edge or whatever it is as you're cap jewel may be hiding in their. I've had that happen where it slides under something seemingly disappearing.

1 hour ago, Shane47 said:

Also I know this has been asked probably a thousand times but when oiling why is it put on the flat part of cap stone and not in the bearing then put the cap jewel on top.  Just curious.

I don't think anyone is ever asked Before. The easiest way to figure out the answer to the question is try it and see what happens. A lot of stuff is just done because that's traditionally how it's been done. My suspicion is you won't build get the proper quantity of oil will be hard to do that. But we won't find out to give us a report of how it worked

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