Neither circle nor square, the Disk breaks through with the simplicity of geometric shape. Large digital readouts are controlled with an easy-to-use interface. The essentials include day, date, alarm, chronograph, and countdown timer, and are just a simple button press away. (Don’t worry, we only created three buttons.) The 39mm case was shaped uber-thin for active wearability and low profile. Produced with Other People’s Plastic, the Disk is a digital watch that's equal parts eco-conscious and style-forward.