The stickers were not individual, separate colors, they were large panels made up of the already-jumbled colors. In fact, I'm not even sure they were stickers, or if they would come off easily.
Regarding your questioning of why I smashed the clock, it was not merely because I couldn't "solve" it that I smashed it.
> Were there 9 of each color on the visible faces at least?
I never checked that closely. It is apparently still available (see link above) so you may be able to find enough images to piece it together.
However, two areas lack color: the display, which is 3 horizontal tiles in the center of the "front" face, and the bottom, where the battery compartment opens, which is unpainted black plastic.
So no, even if you could move the stickers around, there aren't enough for coverage, and why would you cover the display face? I mean, do you want a Rubik's Cube or an alarm clock in this bargain?
Regarding your questioning of why I smashed the clock, it was not merely because I couldn't "solve" it that I smashed it.