A decade before Issey Miyake came out with the TO or years before Ron Arad did “Look Ma, No Hands” for Alessi, there was the Time Dimension. Designed by Hans Donner in collaboration with watchmaker, Bernhard Lederer, the watch took nine years to make and was probably the first watch to contain three discs instead of hands to tell time. (I’m not sure how accurate I am, but feel free to correct me if I’m wrong – Editor)
The idea of Time Dimension wasn’t intended to be limited only to a wrist watch. Donner envisioned even making monumental clocks for city squares, like the concept of a tower clock for the Berlin Plaza shown in the image below.