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Omega 2374/4, problem with loose snap back

  1. Urdal Sep 28, 2023

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    The case back of my Omega 2374/4 (mid 1940, picture attached) doesn't snap in position and will just fall off. Inner dia of the case is 31,55 mm and the outer dia of the "snap edge" of the caseback is 31,45 mm i.e. 0,1 mm too small.
    I don't know if this is due to wear or if there shall be a special seal/snap ring in the grove?
    One of the former owners had glued the caseback in place which I doubt is the right method.

    I would appreciate very much any advise or suggestion to solve this issue.

    Picture 1.jpg
     
  2. X350 XJR Vintage Omega Aficionado Sep 28, 2023

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    You're missing the retainer ring.

    68577-67be97b9edd8844d7d18b83daff6c424.jpg 68576-632749ef6043859116b7528a5bd6941c.jpg
     
    Dan S likes this.
  3. Urdal Sep 29, 2023

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    Ok, thanks a lot!
    Now the challange will be to find one. Any suggestion where to find it?
     
  4. Archer Omega Qualified Watchmaker Sep 29, 2023

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    That might be a tall order. But here is the part number and description - it might help in your search.

    082ST2374F | MAINTAINING RING CASE BACK
     
    UncleBuck likes this.
  5. Urdal Sep 29, 2023

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    Great, thanks!