Here's two of mine:
Is one way to define "vintage" when the crystal generally changed from acrylic?
from different styles
Chronographe Suisse, late 50's or early 60's - Landeron 51 movement
http://www.wenltd.co.uk/TZ/Chrono_S.jpg
Zodiac Chronograph, 1970's - Valjoux 7734
http://www.wenltd.co.uk/TZ/Zodiac_1.jpg