The Venus 178 was used from introduction until the mid to late 60s. The Valjoux 72 was used for some years early on but made in small numbers. The Venus 178 is the most common for the ref. 806. My '64 806 has the Venus.
- SJX
that will teach me to read every post in full before replying.
my apologies
Graham
luckily now i have one.
from what i read the Venus 178 was the movement used, but at a certain point in time they used the Valjoux 72 for a small number of navitimers.
in the meantime, enjoy a pic of my 1964 Venus 178 calibre

best
Graham