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pmwas

  1. A high grade, quite early Columbus

    Hi again!
    I bought it as parts movement, but it's actually a high grade, nicely finished Columbus, so I thought maybe I could just add it to my collection.
    Quite unfortunately, it's an early piece, with bearings in the potence screwed down from the top. These need short balance staffs, that are difficult to get.

    So I decided to use a 16s watch staff.
    I had to reduce the thickness of the balance hub, but unfortunatelty I still bent the balance slightly when riveting. ...
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