Elgin grade 772 mainspring

Discussion in 'Watch Repair' started by Dave Coatsworth, Apr 10, 2017.

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  1. Dave Coatsworth

    Dave Coatsworth Super Moderator

    Feb 11, 2005
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    My Elgin catalog predates this grade... Can anyone tell me what mainspring the grade 772 uses?
     
  2. PWfanatik

    PWfanatik Registered User

    Jul 7, 2015
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    #2 PWfanatik, Apr 10, 2017
    Last edited: Apr 10, 2017
    Dave,
    I see that is 13/0 movement...
    Looks like Swigart shows a part number 6003 for a size 15/0, (Grade 559) I realize this is a slightly smaller size...
    The barrel it goes in is a 5535. Don't know if you can find dimensions and compare these parts, but hope it helps.
    David.
     
  3. 18k BPH

    18k BPH Registered User

    Aug 18, 2016
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  4. Dave Coatsworth

    Dave Coatsworth Super Moderator

    Feb 11, 2005
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    Awesome! Thank you!
     
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