Design submitted by David from UK.
After experimenting with 3D and optical illusions, David came up with this watch design which can either be viewed as pyramid or a tunnel.
Starting at the top and reading the 4 sides in a clockwise direction, you can read the time as if you were viewing a pyramid from above or standing at the entrance to a tunnel. Until you get used to reading the time, it helps to rotate your head from side to side.
The 3D effect gives the watch a depth and interest which most 2d models do not have. The watch would suit a range of colors and backgrounds.