One of my favorite...
Beautiful picture! It is one of my favorite vintage movements! regards erich
Lovely picture!
I also love the same movement! And I think 12-400 as fine. Masahiro cal.12-120 ref.565 cal.12-400 ref.96pt...
Since we're doing regulators ...
from another era ... Especially elegant shape and engraving. Diamond endstone. Square adjustment screw allowing three possible adjustment tools: small wrench, pin and screwdriver....
The type of regulator.
I think that "12-120" is called a whip type regulator and "12-400" is called the swan neck type regulator.