Gravity

Time bends, space curves.

I have no idea what's Relativity, but here's a watch face that bends space with time.

There are no hands drawn on this watch face. Instead, each hand is treated as a rod of mass, and the dots in the background are pulled towards it like gravity. The space around the hands gets distorted, and the hands show up as lines where the dots gather.

Turn on anti-gravity and it's the other way round, the hands push the dots away, leaving gaps in the shape of the hands.

It's available for Pebble.

You can find the source code here.