Hello,
Serial number is lower than 1,288,600 and database says: "The first series ist
marked as calibre 40., (...)having no fine adjustment"
But as I can see, there is a fine regulation with +/-?
So my question: is it a Cal. 40 or 401? And are there further informations
about the movement?
this is a watch from 1952.
Thank you for help!
Hi Kubus,
below you find a picture of a CAL. 401 with a micrometric fine adjustment on
the regulator index. I marked it with the yellow Arrow. This assembly is also
called a "Swan Neck". This assembly allows very precise movement of the
regulator Index. Your Movement is a Cal. 40.
Sorry for the poor image quality
br
Cromagnonman
Thank you for this information!