Could someone help with identifying this Vacheron model, 36,automatic, date, thick Roman numerals,

 

Sorry here are the photos

 

36 mm
Described as 750 yellow metal, gold? The buckle is gold plated

 

Might be a caliber 1121 inside, but can't be sure. It's probably pre-1975 since the "&" is still between VACHERON and CONSTANTIN. That's the best I can do without a look inside.

 

Thanks a lot very helpful, I thought it was 70s given size of 36 mm and the cross hatched bezel, 50s and 60s were smaller sizes, thanks again

 

One of the main reasons I like it is that it has not been touched up, no polishing etc, the size, and finally the thick Arabic numerals

 

Thanks a lot