Read a little deeper...

Although vintage denotes an age / year as it does with wine, in common use it gets used as a descriptor that goes beyond age to denote or imply a certain level of quality / excellence.

My CCM was vinted 1951 but it was a very entry level bicycle, if you live in Canada bikes from this era are seen as being classics of bygone days when CCM was a well known Canadian manufacturer who supplied most of us with our first bicycles.

Classic sets the standard for certain goods and items... some goods and items from bygone days have not stood the test of time or endured.

My SVEA 123 camp / backpacking stove is a classic design who's history goes back 100 years and is a design that has stood the test of time as they are still made to this day with very few changes to the original, and the original is so good people still seek them out.