A moonphase?
Why not...
I really think that if I didn't already own 2 perpetual calendars ( The UN and the 8 Days perp skeleton from JLC ), my 3rd Lange watch would be the Perpetual Langematik...
But I already own 2 pcs...
So, I have to take another direction...Maybe a Cabaret in platinum, with a black dial if it exists...
Or wait and see what Marvel Lange will release...
Best.
Nicolas