gyrating time watch

gyrating time watch - the circular piece in a gyrating motion, it has two sides, one side is earth pattern, another side is moon pattern.
when the circular piece rotate it means sometime! you can contrast to the graduations are marked on the watch surface.
gyrating time watch as the earth is rolling round all the time.

Freelance, Moonlighting
Tao Ma
I've been thinking 南京市, China