Need Help using Swigart American Watch Movements

Discussion in 'Horological Books' started by FreWJensen, Nov 18, 2006.

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  1. FreWJensen

    FreWJensen Guest

    Looking at size 12 elgin grade 303.
    Swigart Does not list grade 303
    Looking for a particular number balance staff.
    Any suggestions how to properly use Swigart?
    Any tips will be greatly appreciated!
    Thanks
     
  2. Jerry Treiman

    Jerry Treiman Registered User
    NAWCC Member

    Aug 25, 2000
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    Geologist - California Geological Survey
    Los Angeles, CA
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    The Swigart catalog can be a little difficult sometimes, especially for Elgin who had so many different models and often different staffs for the same model. According to Elgin's material catalog the 303 takes a #1905 staff if it is before serial number 16032001 and the #2802 staff at that number and later.
     
  3. FreWJensen

    FreWJensen Guest

    I really appreciate your expert guidance.
    To identify parts for elgin, you mentioned material guide. Is that a hard to find publication? Is it one book or a series of guides?
     
  4. Jerry Treiman

    Jerry Treiman Registered User
    NAWCC Member

    Aug 25, 2000
    6,045
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    Geologist - California Geological Survey
    Los Angeles, CA
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    The "Elgin Watch Materials Catalog" that I used is a 3-ring maroon Elgin binder with a serial number/grade list and then following pages (up to p.241), ordered by grade, providing part numbers for each grade. They appear to have done away with the "class" designations used in their early 1900s material catalogs. My binder is undated, but includes serial numbers with various letter prefixes and #50,000,000. These catalogs turn up periodically at NAWCC marts.
     
  5. FreWJensen

    FreWJensen Guest

    Can I ask one more thing?
    The 1905 staff is sold 2 ways
    long hub and standard hub.
    Is their any indication of which one is used, or do I just have to dissasemble it to see?
    I guess I could by one of each.
    I hate to dissemble it and they wait for several weeks, some time you loose track of where everything goes when you do that.
     
  6. Jerry Treiman

    Jerry Treiman Registered User
    NAWCC Member

    Aug 25, 2000
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    Geologist - California Geological Survey
    Los Angeles, CA
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    None of my literature indicates which movements may have used which staff so you will probably have to compare to the original staff. I measured two examples from my material stock and the short hub is 0.37 mm thick and the long hub is 0.63 mm thick.
     
  7. FreWJensen

    FreWJensen Guest

    Thanks for all your trouble.
    I really appreciate all your efforts to asist me.
    Thanks for the dimensions they will greatly help.
     

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