Why not automatic, if the movement enjoys a three quarter rotor?
Some will tell me that a three quarter rotor may not bring enough power reserve to the watch, I would answer that Patek, wih their Micro Rotor ( Cal 240 ) succeeded in reaching 60 hours.
I don't complain about the rotor of the Langematik Perpetual, which I find very nice.
Actually, I would have preferred seeing a manual movement on this Lange One Tourbillon Perpetual, like you.
As I wrote, I am not in ecstasy with this watch.
Too technical, not enough soul nor charm.
The Dato Up Down is a deception, and I would have preferred a Saxonia Thin with a 2 mm smaller case and a black dial.
So, not my year, for Lange watches.
Perhaps next year?
Best, and thanks fo your kind words!
Nicolas