The 4th Dimension Watch is composed of a thick circular case and cognac leather band. Although a relatively simple design, the watch has a complex balance of materials that includes concrete, stainless steel, bronze, and leather. Taiwanese designers Sean Yu and Yi-Ting Cheng imagined linking time and space into a visual form when they designed the 4th Dimension Watch. The shape is designed to take the shape of a spiral staircase, while the gold-hued hands move up and down. The effect is a careful and sophisticated interplay of shadow and light.