4th dimension concrete clock uses a three dimensional clock face to allow for a unique aesthetic, as the hands pass over it. The design is described as:

A wall clock made of one solid piece from cement. Concept of linking time and space is visualized with the form of a spiral staircase that has hands on its top level continuously going down and up as time goes by. Thus, the “4th” dimension. Light and shadow also changes with time in this clock.