Here's another vintage catalogue, this one I bought from Italy last year.
I would say it's from 1970 or maybe one or two years later. It's my oldest that features the Da Vinci. The Da Vinci is promoted with a "Quartz Electronic" movement besides other references with mechanical and tuning fork movements. (The 1974 catalogue states that the Da Vinci was launched at the Basel fair in 1970.)
Enjoy a few of the pages below!
/Anders






