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ETA 255.111 among others walkthrough


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Now it is time for me to look at the ETA 255.111, a movement found in a large amount of mid-priced quarts watches from Certina, Tissot, Omega, ETERNA, Longines, Tudor and many others.

Though it goes by many names the original movement can be used as a guide when servicing others in this family.
To save space and not make the thread a mile long I as usual made two PDF files of the Disassembly and Assembly of the movement.

And as usual I urge you to look at the oiling and greasing scheme in the original documents from ETA.

Enjoy!

 

BackSide.jpg

ETA_255_111_Disassemble.pdf

ETA_255_111_Assemble.pdf

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There were a couple of them and with different cases, the one in the Picture comes from a Tissot Seastar (9kt gold case) and there were some earlie Tissot 1853 with the same movement.
It should say which one you have on the dial.

Edited by HSL
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    • Hello and welcome from Leeds, England. 
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    • Welcome 🙂 Inherited watches are very tricky. Some of them, or all, do have sentimental value, perhaps not to you but perhaps to others in the family. Ruining them doesn't make you popular. Start on innocent watches who do no harm, not to your wallet nor to others 😉 BTW; for in the future it would be helpful to others to mention your location in your profile. Success 🤗  
    • Hello from the Mid-Atlantic United States. I've been in the hobby for a few months and have concluded that I will be staying in it for a while. I've started to get some proper tools and I am looking forward to developing some skills. My current goal is to get comfortable enough to service / repair some watches I've inherited from family members.  My current project is a Mentor pendent watch with a BF866 movement that belonged to my great aunt.
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