Del

[MooDeng]

There's not much more that I can add to what I already hadn't said.

Your jacket is based on a pre-war lancer-front style car-coat that would get (shortened) to a jacket length. While generally always present in one form or another, the 1980's and 1990's saw a revival of this style of jacket - Well, a lot of leather jacket styles saw a come-back at the time - and since the production had gotten more simpler than ever, a lot of them got made.
This is mostly the reason why you shouldn't expect to find any information about these online as 80's leather jackets aren't very popular at all, being perceived as forerunners of the decline of leather garments quality. Another factor is that there's barely any info about vintage European leather jackets in general.

Anyhow, while appearing generally similar, the originals are actually quite different but even at just a superficial examination, the size tag is a tell-tale sign that your jacket isn't a vintage piece as, needless to point out, they didn't have automatic label printing machines back then.

Again, 1940's original would have a hand-written label, usually stitched to a pocket lining, that contains a very detailed information about your jacket, often with the date and name of the person who made it.

Thanks so much for the detailed clarifications, much appreciated!