.....i do agree that this is the best 5170 yet. In fact, it is a superb 5170 and I was very tempted. But.....
Case of the 5070 is just more pleasing for me.
Dial on the 5170 is on the darker side for my taste whereas the dial on the 5070P just hasn't been matched since.
Diamonds on the dial.....this will divide a lot of people. Cultural values will play a big part. For me, diamonds don't belong on the dial of a watch. Just my personal taste....
Ultimately, it will boil down to taste and nobody has a monopoly on that.
But between these two.....5070 takes it.
....of course, tthe endowment heuristic will come into play here in a perverse way. With only 150 5070P in existence, the potential to own one is significantly less than the potential to own a 5170P. This relative ownership potential will bias opinion towards the 5170.
Just saying.