First of all, even if I look at your watch, I could recognize the remains of the brushed surface.
Second to that, for me the polished surface is not the used learned V&C look and feel in aesthetic terms, not the V&C style.
Third to that, I would mention the numerus satinised versions, which quite well look very V&C, especially in untouched versions.
But to know that for 100%, no that’s not possible. Even the company couldn't probably make a statement about it. You could check the product offer, catalogues or adverts of the early 70’s. However, this would only give a glimpse – an idea.
Another topic I would like to mention:
You talked about, that there is a JLC movement in your watch. You are lucky, that’s not correct. The base movement (the ground plate and the bridges) was sourced at JLC, but the finished movement is V&C. There is usually much more refinement in a V&C movement compared to JLC. My recommendation would be, compare them to understand what’s V&C is about.