Density of time changes.
If you are sprinting, milliseconds matter. If you are in a meeting, minutes matter.
If you are on a holiday? Nothing should matter.
Most clocks are too informative than they need to be, the minute hand disturbs your peace, the second hand urges you to rush.
This is Partial, a clock that reminds you to relax, you don’t have to utilise every second.

How to read

The angle of the clipped image indicates the hour,
e.g. it’s vertical at 12, horizontal at 3.

The area of the clipped image indicates percentage passed of the hour. At 00:01 will be a thin line, at 00:59 it will be a half the screen.
You can read more here
This is also available for Pebble and Bangle.js.