Amanico
I read what you say & I mainly agree.
You mention that it is a complication that stops half way in comparison to a Perpetual Calendar, which is true.
But then again a PC is also very nearly double the price!!
I love my 5146J, though if I could of afforded another £18,000 then I probably would of gone for a PC though its one disadvantage is that it is smaller, which in turn IMO makes its harder to read.