Watch Chronographe Suisse vintage hand winding

Hello,
I am cleaning up my wardrobe and sell this vintage Chronographe Suisse watch in a great shape for its age (from the 1960s)
Mechanical hand winding
36 mm diameter
Pink gold plated
Purchased second hand from a watch dealer in a watch fair
The watch works perfectly and keeps time well. the Chronograph, starts, stops and reverts to its initial position perfectly.
If interested I can send you a short video for you to see better the watch and how well the watch works
However I am in no way a watch expert so I can’t open the case for you nor tell you what is in it
Check my other listings.