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UWERSI 57/4

AlexanderB
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AlexanderB WRT Addict

AlexanderB

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My next watch on the table is an old Anker Ladies watch that my mother in law gave me. She wanted to throw it away anyway since it is not running anymore.

The first thing I found out is that it is the caliber 57/4 built by Uhren-Werk Ersingen (UWERSI) I wasn't able to date the movement. Maybe somewhere in the late 1950's or 1960's.

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Situation:

  • Fully wound, does not start. 
  • Slightly rusty
  • overall condition: requires cleaning and service

The first thing I did, after removing the dial was removing the balance wheel and cock. I saw immediately that this will be a challenge for me! In order to clean the stone, I need to remove the hairspring. I wonder it I can to that with my skills. I dipped the entire assembly in Bergeon One-Dip. But I guess this is not sufficient.

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Your advice is highly appreciated.

Cheers Alexander

 

 

AlexanderB WRT Addict

AlexanderB

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Sorry, folks. This will come to an abrupt end here. I was barely able to remove the screw of the pallet fork bridge. Then I was totally unable to unscrew any (!) of the screws of the dial side. It is also impossible to remove the hairspring since the screw in the stud is highly rusted.

I stop here since I have quite a couple of movements to work on. 

However, you may come up with ideas of how to remove screws that are stuck from corrosion. I just put everything in a box. Maybe I can come back that later.

Cheers Alexander

bobm12 Distinguished Member

bobm12

Posted
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Hi Alexander,

This is the stuff I use:

slf.jpg You need to put a few drops in and leave for a few minutes for it to work.

Also, sometimes leaving parts in some oil 3-in-1 or -- I've heard -- motor oil (not too sure about this one) may work. Some people even use CocaCola in some rusty parts...I go with the picture above...it is safe for the hairspring.

There is also Bergeon 30496 for rust but it can be really tough on delicate parts if left for too long.

Cheers,

Bob

AlexanderB WRT Addict

AlexanderB

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Thank you Bob,

I was looking for something like that, but I can't find it. Do you have a brand name? I looked on ebay, CousinsUK, Amazon to no avail. What I have is WD-40. Will this work?

Cheers Alexander

bobm12 Distinguished Member

bobm12

Posted
Posted

NO! No, WD-40! It would damage the watch like for life...It sticks and makes quite a mess. This one I posted comes exactly like that. On the other side it says: Optical Supply Inc., Western. Product #4110. Nothing saying what it contains...so if you are able to find out let us know.

Cheers,

Bob

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AlexanderB WRT Addict

AlexanderB

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Thank you Bob,

I did some more research, to no avail. Seem that this product is not available in Germany.

Maybe I go for the Bergeon product.

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