On Ludovic Ballouard’s Upside Down Watch, each hour indicator is placed on a small disc that is capable of rotating. By default, the disc is rotated so that the numbers appear upside down. However, the “active” hour, which corresponds to the right time, is flipped around to be right side up. A small dot on the disc is displayed to help you read the time quickly. In the image shown, the time is just after 1010.