At first glance, the Perpetual Calendar by Gideon Dagan may look more like a product inspired by one of Leonardo da Vinci's mechanical creations than an actual date keeper. Comprised of a circle and line, it strikes a balanced pose that many will find themselves captivated by. In fact, when mounted on a wall, people might find themselves staring at it as though it were a work of art in need of interpretation.
Available for purchase at the MoMA Store, the Perpetual Calendar by Gideon Dagan is available in two colorways: black silver and black red. Rather easy to read, it uses two small magnetic balls, one to point out a number on the line and another to signal the month on the circle. It is made out of injection-molded plastic.