Late 1970's early 80's gold plated?

I have a Vacheron watch which apparently is only gold plated! we think its either the late 70's or early 80's. It has a sapphire wind. It is one of my Father's watches - unfortunately no papers or box with this one, appreciate any help to the year this may have been make or why they decided to do gold plated watches around this period. Many thanks
VC never made gold plated watches! Can you post a scan? (nt)
02/02/2010 - 14:57