Instead of a traditional second hand, Simple Circles Watch Face features an illusion based off of Tusi Motion. It looks like a circle rolling around the watch, but if you look closer each dot only moves in a straight line!

The seconds value is determined by observing where the "circle" appears to be touching the border. A dot touches the border at every multiple of 5 seconds. For example, in the screen shots it's at 0 seconds.

Users can select a color for the dots with configuration settings on the phone or the watch. There's also an option to draw the lines that the dots follow as well!

This watch face was intended for round screens but it works just as well on square ones!