Minerva 19-9 wich size mainspring?

Thread: Minerva 19-9 wich size mainspring?

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  1. #1
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    Minerva 19-9 wich size mainspring?

    I recently bought an Alpina/Dugena German Officers chronograph pocketwatch. It is not running the mainspring appears to be broken.
    Now I am looking for any service info on the Minerva 19-9 movement and who knows wich size mainspring I need for this movement?

    Last edited by vintagetimepieces; July 25th, 2015 at 22:32.

  2. #2
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    Re: Minerva 19-9 wich size mainspring?

    you've tried with the measures of the 19 lines. maybe can help the site of Roland

    bidfun-db Archive: Watch Movements

    regards enrico

  3. #3
    Zenith Forum Co-moderator
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    Re: Minerva 19-9 wich size mainspring?

    Unfortunately, Ranfft gives the specifications for winding stems and balance staffs, but not for mainsprings.....

    A PM to him may help - if he has the former info for publication, he may have your info stashed away somewhere. Good luck!

    Hartmut Richter

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