1440

1 grid, 1 day.
This is a watch face inspired by the ttmm series.

Each dot represents 10 minutes. A day is a full grid, gradually filled up, one by one. While it looks like a pretty abstract watch face, I found it surprisingly easy to read. Each lines is 12 dots, so it's 2 hours per line. A brief count along the axes brings you to the closest 10 minutes. To make it more abstract, there's a random mode, which makes everything much more difficult.
This watch face also supports a round watch, an irregular distribution of dots zooming in or out.

It's available for both Pebble and Bangle.js.

Source code is available here.