At first glance, it doesn't look like a smart watch. And that's the entire point. Like the Stop the Time Watch before it, the Calendar Watch uses its connection to your phone to enable a single time-saving feature without losing its mechanical heritage. In this case, that feature is the ability to display your daily calendar, using an E-paper display that serves and the dial and a vibration motor for alerting you to your next meeting. The rechargeable battery lasts for weeks, the hands and dial are protected by domed sapphire glass, and the interchangeable lugs and bands let you customize the watch to suit your tastes.