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Weird balance cap jewel - Lorsa cal P75

clarkii

By clarkii
in Watch Repairs Help & Advice

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clarkii New Member

clarkii

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Hey gang. First time poster. I'm a newbie and learning to clean and oil watches. I'm currently working on a Lorsa P75 movement (which I found with an Elgin dial in a German case). I'm stuck trying to remove the balance cap jewels. I've tried messing with it but can't figure it out. Is it permanent? Do I bend the tabs? Is there some other trick?

Thanks for your sage advice.

Kris 601051999_balancejewel.thumb.jpg.67eb8873166c9dcd9998633aa8f8be36.jpg

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Nucejoe Distinguished Member

Nucejoe

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Hi, welcome.

Tabs break easy so do not lift to extreams and there is no need to open tabs to extreme, cabs can be taken out( once free) through half way lifted tabs.

Insert a longer & thinner pivot( if you got old balances wih one broken pivot)  through the jewel hole, like balance pivot normally is when watch running, push the cab loose.

Once you take the cabs off, you would want to clean the jewel as best as you can.This design was not good for frequent cab removal.

Regards

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oldhippy Distinguished Member

oldhippy

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Hello clarkii,

On this friendly forum before making a post for help or advice. We like new members to introduce themselves. Just say a little about what you do and about yourself.

We like that to go into the Introducing Yourself Here. This is the link.

https://www.watchrepairtalk.com/forum/23-introduce-yourself-here/

Members please do not reply until he has introduced himself.

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clarkii New Member

clarkii

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Thanks all. My thoughts exactly: bend the tabs ... what could possibly go wrong?? lol

Hmmm, now the dilemma. Sounds like ultrasonic cleaning and auto oiler is safest approach. Unfortunately, I have neither ultrasonic cleaner nor auto oiler. Ugh.

Slightly bending tabs and pushing with longer pivot sounds decent. But I just started and don't have a broken balance yet. 

Or I can leave it, trying to oil it from the other side, but I bet that doesn't work well. 

Damn the torpedoes ... I'll try lifting the tabs slowly and see if I can get an edge under the cap. 

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      I think what peter means oh is once he has fitted the hands and  checked for  alignment if them and that they dont foul, how does he then hold the movement to remove the stem in order to case up. The dial cannot be laid on a cushion or in a movement holder as the hands will get damaged. This can be quite tricky for a beginner, what i do is  to stand the movement on edge on a rubber pad so it doesn't slip. Hold the top edge with one finger then my dominant hand uses 3 fingers to press the stem release and flick out the stem. See below peter, leave off the second hand as this is the longest and gets caught the most, then fit it once the stem is out. Alternatively place the movement in one of the cup style holders, i imagine this is what they are designed for. They only touch the very edge of the dial.  
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