Not sure what that would have been. Most likely diamonds! The Mikrgirder/ MikrotoubillonS were the most expensive steel watches, so anything north of this is probably due to its diamond count.
#11
Dream watches everyone on the list. Specially V4. What price range would you put on Calibre 1969 (car2A50)? Of course it is not anywhere near that list but nice watch and quite rare also.