I might be wrong but I am pretty sure that Tudor does not have 2 million serial ranges with the 7017/7020 Jumbos and I am pretty sure that is not a good font.
I strongly recommend that you take clear photos of the ref & serial sides - without the glare - so everything can be seen and post them here
https://rolexforums.com/forumdisplay.php?f=32 in the vintage section so people can properly comment.
Based on what I see I have a lot of concerns which is why i think you really really need to post this in the vintage section, with clear photos of the entire watch in addition to the engravings, so people can properly comment.