Just wondering whether Seiko or Citizen have made or make a Triple Calendar Annual Calendar Automatic with Moon Phase?
Swiss makes manage it with modified ETA's and Dubois and Vajiloux (such as the Longines, Maurice Lacroix, Junghans etc) so it should be relatively simple for Seiko and Citizen to do the same for less outlay.

Any ideas?

PS. Auto/Mechanical only not Kinetic or Quartz based.