A concept by Martin Frey, a designer, the Just in Time Watch allows you to get relevant appointment information with just a glance. The JIT Watch is a "thinking" watch, which means it interfaces with your Bluetooth phone to coordinate your schedule.
Once interfaced, the JIT Watch can use GPS to know where you are, when and hwere your next appointment is, and when you should leave. This way, the watch can quickly show you how much time is left until your appointment, how much time you have until you're supposed to leave for your appointment, and how late you are if you haven't already left.
Oh, and we think it tells time as well.