If you are looking for a unique time piece to wear on your wrist then this quirky LED Binary watch might be worth a look. The watch uses 10 blue LED’s to display the time in binary format 1, 2, 4, 8, 16, 32, with the shown values then added to reveal the correct time.
The watch face consists of two rows of LEDs, with the top row (8-4-2-1) showing the hours and the bottom row showing the minutes (32-16-8-4-2-1), and is revealed for 5 seconds after pressing the button on the side of the watch.
This watch also has a soft leather band, a circuitboard watch face, and stainless steel back and casing. It is water resistant to 3 atmospheres and comes with batteries.
The LED Binary Watch is available from Think Geek for $70