is very superficial. One watch can be a great collection as can several. You will be taken as serious as you are about your watch (s). Not much more to it than that. The serious PP collecting still centers on the older watches which were made in very limited numbers from 1925 thru 1980.
but wears very big, is very top heavy and is very hard to read the calendar sub dials. For an all around wearable watch the PP wins by a wide margin. From a purely mechanical and movement basis the Datagraph is far more spectacular than this PP. This PP is not even close.
still puzzles me. How hard can it be to cut sheet metal with a CNC machine. To me that is far easier than actually making a watch and have it work and do all the finishing. I get there is some cost in obtaining, storing and milling steel and fabricating screws.