I didn't know if I should laugh or get out my credit card...
Recent Skymall ad....
BINARY CODE WATCH
Hard-core techies love this watch. So do design devotees. Red lights on the green circuit-board face represent powers of two: 2, 4, 8, 16, 32. A series of electrical impulses turns them on (1) or off (0), displaying the time in binary code. If you know the code, you can tell the time, amazing those around you who don't have a clue. Water-resistant to 100 ft., watch has a stainless-steel case and soft leather band. Face is 1 5/8" across.