Stem removal

Thread: Stem removal

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  1. #1
    Member char's Avatar
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    Stem removal

    Does anyone know the secret to removing the stem from a Cat c 66 21j movement? There's a little button near the stem root but it doesn't depress any.

  2. #2
    Zenith Forum Co-moderator
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    Feb 2006
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    16,995

    Re: Stem removal

    Sorry, but I wouldn't know of any other way to get the stem out. If you are unlucky, the dial is too tight a fit and prevents the spring on the dial side from being pushed back. Piccies from both sides:

    Das Metatechnische Kabinett - Cattin 66

    Hartmut Richter

  3. #3
    Member pithy's Avatar
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    Re: Stem removal

    Pull the crown and observe the stem area carefully. (The outside arm of the clutch lever spring should expose itself beyond the plate.) Then watch again closely as you depress the crown. Depressing it will release the pressure on the setlever.

    p
    Courtesy of ULF.

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  5. #4
    Member char's Avatar
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    Re: Stem removal

    Thanks hartmut. That's a helpful link. I wonder if the 21j movements just has 6 unused jewels in it instead of the 2 in the 17j. I'll pay more attention to the clutch action to see if that helps

  6. #5
    Member char's Avatar
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    Re: Stem removal

    I can't see any of the clutch from under the bridge. The case is a mortima diver and the movement sits pretty deep. I dropped it and the balance has come out Trying to see if the axle pins are snapped or it just has sprung out

  7. #6
    Member pithy's Avatar
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    Re: Stem removal

    From the dial side.

    p
    Attached Images Attached Images

    Courtesy of ULF.

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