Moire Seconds Clock Prototype

'Moiré seconds' is a clock concept. The second hand of the clock is replaced with (or connected to) a mask which rotates. Due to the rotation of the mask, it gradually reveals different parts of the clock face as time passes. This creates the illusion that the image on the face of the clock is changing.
The illusion is based on so-called moiré-effect, more precisely moiré-animation.