We have seen quite a few different geeky watches here on geeky gadgets, the latest one is this cool Twilight Watch.
The Twilight Watch face changes as the time goes on throughout the day, as it gets darker the watch face gets darker, as it gets lighter the watch face gets lighter.
The Twilight Watch is made from stainless steel and features a 36mm (diameter) case, it is water resistant to 100 feet, check out this video of it in action below.
The Twilight Watch is available for $119.99 from Think Geek.