Aurore brand mainspring chart needed

Discussion in 'Watch Repair' started by 4thdimension, May 22, 2020.

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  1. 4thdimension

    4thdimension Registered User

    Oct 18, 2001
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    Someone recently gave me an Aurore mainspring system but I am baffled as to how to convert it to something I can understand. An example is a spring for an Omega 23.4 labeled X2601. It has metric measurements 14. 9mm. which I don’t compute. Some springs are labeled with “diam.” which also is a puzzle. There are a couple of thousand springs here but they’re useless until I figure this out. Help! -Cort
     
  2. Skutt50

    Skutt50 Registered User

    Mar 14, 2008
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    My guess is the the 14.9 mm refers to the barrel diameter.
     
  3. 4thdimension

    4thdimension Registered User

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    I thought that might be the case too. I haven’t heard of springs categorized that way before. I’m too accustomed to the Dennison system I suppose. -Cort
     
  4. John Runciman

    John Runciman Registered User
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    Aug 13, 2003
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    I don't suppose you can give us a random sampling of pictures of the various mainspring jpackages ust because? Then in newer catalogs the diameter would be the diameter of the outer mainspring so you know it can be inserted into the barrel. The problem with your diameter for that particular watch that's not the diameter? as an example for the Omega number you have I snipped out a section of a mainspring catalog and you can see the last numbers the diameter and it does not correspond.

    Omega 23.4 mainspring selection.JPG
     

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