Well.. 'That's it', I thought... So I go off to Google & punch in Valjoux 61... there is hardly any info at all..

Does anyone know anything about this wonderful movement?

Here is a OTD library pic..

Stewart

: Thanks Mark,
: Roland Ranfft kindly replied to my email with the info - it's a
: Val. 61. I can't believe I missed it, there is one as clear as
: day on the OTD/movements page - doh!!

: I've been researching this 701, and there seems to be so many blind
: alleys and false summits, especially as the 701 as a model ref.
: no was in use from pre-1938 to at least the late 60's. where the
: 60's catalogue states it has a Val. 76.

: Not sure about you're observations Mark, Dr. Rannfft identifies
: both as a V.61.. I have a better 'top down' photo, and the
: m'ment is the same as the diagram.
: I know that David D has/had one of these & his m'ment is
: identical.(same bridge)
: I'm just waiting for David to give me permission to use his photo
: & then I can upload all my research.

: Markings on it are: SWISS MADE 145688 (I think it’s a ‘1’ at
: the start)

: Cheers
: Stewart