When designing the watch faces, I think about the functionality, meaning and common part of the watch. Some interesting things I found:

• People use clocks/watches to sync with others. Like we are individual machines, has to sync with the server to collaborate with each others. (I2C protocal~?)
• Most clocks are on 2D surfaces, why is 360 deg display not that common?
• Most of the designs, the hands walk around the clock rather than the arm at the fixed angle/ position.
• Numbers on the clock face are written evenly because people think the speed time flows is even all the time?

Watch Face.pdf

Displaying the daylight through the background, the bottom side is an one way timeline will reset to 0 every midnight.

The hand is always fixed to one angel. The two plates rotate as time flows.

A clock/ watch face serve a wider observe angel using HSV color wheel

One way keep going up clock face, probably digital. For me, sometimes I feel that time flow is more like a continuous line than a repeating behaviors.