I've compared your coin with the one on the numista page: N#17677
If you check them side by side, the difference is very noticeable and not just because of the wear and tear of your specimen. The general lack of details of your coin, even on places where it can't be just from wear is quite considerable.
Just some of the more obvious problems:
Reverse:
- The left horn of the dragon is partially missing
- The number of the teeth is different
- The left hind leg of the dragon is much leaner
- That squigly line on the left front sholder of the dragon is completely missing
- The cogwheel pattern on the inner side of the edge is barely visible

Obverse:
- outer ring top right character is noticeably shorter
- outer ring bottom right char. The top stroke is merged with the rest of the character, but it should be separate
- outer ring bottom char. The box-shaped character is just merged together
- center left char, same, merged together
- center right char, that tick on the top end of the char looks different

TL;DR: Sorry, probably fake.