The Cosmopolite is a typical GO of top level mechanics : 470 parts, and all for the sake of accurate time zones, without any compromise.
The Kalenderwoche, also with nearly 500 parts, is quite comperable to this one.
Back to the Cosmopolite: best offering for a bussy, very frequently flying top business man.
Size is big yes, but on the other hand all the information needs space, diameter and height.
People wearing such a watch are well organized and travel with great comfort and care, where a big watch on the wrist will not be an obsticle.
Thank you for this nice review!