There are a lot of things to say about the 5070 and the VC...
I'm not really sure that the CH 27 - 70 is better finished than the VC movement.
But yes, it seems that PP reworked and finished it, while VC " only " finished " the movement.
As for the Dato, I still feel that it is better finished, even if the 2 styles are way different.
As for the 1815, yes it is closer to the 5170 than to the 5070, but still, they are different, due to their mutual style; design, and complications ( Flyback for the Lange ).
At the end, which seems to count more than trying to make some comparisons is the feeling the 5070 generates, and here, on this ground, it is highly ranked.
Subjective, indeed.
Best,
Nicolas
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