That means circular, tonneau, cushion, ellipsocurvex, square, TV, rectangular, etc. It means knurled, gadrooned, coin-edged, faceted, etc. It means brushed and/or high-polished; and it means lugs of infinite variety. It means hand-wrought or machined. It means German austerity, Swiss frivolity, etc.
Such is the variety of casework that it’s clear that watchmakers think and approach them in a way that’s on par with the other parts of a watch, even if media and buyers don’t. The reasons for this is obvious from both an engineering and artistic point of view: they’re working on both overall structural integrity and intimate sensory experience through design. In this respect the Logical One isn’t a notable exception. It’s just a fine example from a very diverse field.