Since 1998 when it was initially produced for the MoMA brand, a smaller version of the iconic annual clock specially designed for the 10th anniversary was back in 2008. However, the MoMA Magnetic Perpetual Calendar is easy to use, engaging, and perfect for any spot in your workstation, office, shelves, or exhibits. It gives a tremendous architectural structure design to your working vibes. Both of the magnetics balls are movable manually to the date and month, turning the calendar into visual timekeeping. The Magnetic Perpetual designed by Gideon Dagan has 9-inch high, 13-inch-wide, 2-inch depth, and magnets made of plastic.