The first member of the family.
MC > Ultra Thin > RDM > Memovox > Triple Date > Geographique > Chronograph...
Not necessqarily in this order, as I don't know where to put the Ultra Thins.... Before or after the Master Control? Before, as there is no date, after because the Ultra Thin " exercize " is a sophistication in itself, but you got the idea.
I do think that it has itrs place, and that it deserves more than a " succes d'estime ".
I just wish they improve its design, as they did on some of their " Master watches ".
Best, Phil.
Nicolas.