dr.kol
11333
Now I must agree!
I understand nothing about vertical vs. horizontal.
But what I know for sure is that 3940 together with 5550P are the finest slim perpetuals Patek has ever made! You can forget 5140 as 3940 has so much cleaner dial.
What is amazing with 3940 is that even I do not like pink gold, 3940R with brown dial is stunning - same with 3940J. And naturally, both G and P are pure perfection.
So go for the finest, go for 3940!
Best, Kari