So you want to build your own LED timepiece? Adafruit’s Becky Stern shows you how to do just that using FLORA. The GPS sits in the center of the ring. A leather cuff holds the circuit and hides the battery. The Watch has compass, time, and GPS modes. The below video shows the watch in action:
The project does require some soldering, so it may not be the best place to start for beginners. You can find out more about it here.