A novel clock design is presented featuring a cube rotating in 3D space. Two edges of a wire-frame cube are designated as the hour and minute hands of an analog clock face. The cube is continuously rotated over time so as to align these edges with the respective hands of the clock when viewed head-on. Determination of the rotation is based on principles from 3D graphics. The concept was realized in digital form as a watch face for a fitness tracker, and ultimately as a physical artwork based on an actuated gimbal designed to look like an old-fashioned ‘steampunk’ machine.