As said, the 5170 has a better movement in terms of " technicity ". But in terms of finish, the way the bridges are designed, you feel it will be a movement which will be produced in bigger volumes.
The dials... You did well to post dials of some Patek Vintage Chronos. They had character. Their subdials were correctly aligned.
Now, the fact that the 5170 subdials are below a 3 / 9 line is really weird, in terms of aesthetics. If you see a triangle between the subdials and the Patek signature, it i a totally crashed triangle.
The use of black for the new dial is a good idea, but the dial configuration changed, is too simple, lacks character. The new black Rattrapante is another league, but another pleasure, too. THAT one is something.
Not that the 5070 is perfect, as I already stated. But it is cool, with all its flaws, and it has flaws!
To sum my opinion, Patek didn't do better with the 5170, except technically. Will this be enough?
Best, and thanks for this excellent post, Mark.