It is actually kind of cool but pretty much useless. The other not so cheesy merchandise for the movie Twilight, which I have to admit liked. I know, I know chick flick and stuff but every guy should embrace the little chick inside.
Between daylight and darkness, twilight is constantly changing from dark to light as the the sun slowly fades away. This beautiful natural phenomenon is reflected every second in the Twilight Watch. The face fades from light to black and back every 20 seconds, reminding us of the ever changing evolution of time. The optical effect is created using two polarized disks that rotate with the seconds.
Twilight’s case is 36mm (1.42") in diameter and is made of brushed stainless steel, with a stainless steel case back. It has no visible lugs for a seamless connection from strap to case. Twilight comes with a glove-soft black leather band. This watch is water resistant to 100 feet (30 meters).
More info: Fading Twilight Watch