Thank you, @spikeyxxx, for the watch recommendation. The second one looks indeed already complicated in the preview image although I like it from an aesthetic point of view 😉.
PS: @spikeyxxx Could I say that a complex number can be visualized as a point in 2-D space with one coordinate beeing the real part and the other the imaginery part? And the quaternion would then be “visualized” 😉 as a point in 4D-space on a 4D-hypersphere?