The 938/40 I completely agree Martin. For the Sankyo 800, it's a modern styled fine looking machine for sure, but just somewhat a little generic to my eyes personally.
For me, the true award winners for their aesthetics also incorporate a mixer desk with sliders and V.U. meters etc etc.
These are the models that truly transitioned well into the 80's with their sleek modern day looks as well as being almost future proof for their ergonomics.
Still to this day nearly all styled in this manner, don't look dated even in this era now.
The piano keys on the GS and the soft touch buttons on such models as the SD Auto are equally a sleek modern day nice looking feature that others could have fashioned simirlarly, but ironically it is these features and their micro switches which are also prone to reliability issues from an engineering design standpoint.
So from a looks and looks alone perspective,as well as an ergonomic perspective it has to be said, it's understandable why they were chosen, from an engineering design aspect, it's understandable why sometimes they were not always chosen over more traditional rotary knob and cam shaft / electrical contacts methods of arriving at the same outcome.
The same can still be witnessed to this day regarding modern day washing machine designs etc etc.
More often than not, many Bosch washing machines still utilizes the rotary manual main control knob as a preferred method of control / selection.