Aspiral Clocks don’t use hands or digital displays, just a ball. The clock itself spins, driving the ball through a spiral until—every twelve hours—it disappears in a hole at the center. Confused?

Thanks to wearables like the Apple Watch, there’s no doubt that our timepieces are getting smarter and more high-tech. However, if you really want an attention-grabbing way to tell the time (albeit a ...