Time: how does it work? Well, the physicists are still trying to figure that out. And while they're tinkering with bosons and quarks and dark matter, the designers at Ziiiro are working on an equally important task: how to represent time, preferably in wrist-compatible form. Now they've got two new attempts, dubbed "Aurora" and "Orbit," that show time as a mix of colors or as a pair of circling orbs, respectively. They have about the same learning curve as earlier Ziiiro watches, and the company's website helpfully walks you through how to read them – "It's no rocket science at all!" If the designs are too minimalist for you, you can always treat yourself to Harry Winston's Opus Eleven. Otherwise, these will ship in late May and set you back €129 (about $184).

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