Although it's a much lighter colour than I'm used to, as you can see from the pictures, it's just gorgeous. It's a pale mauve with tons of blue and pink microglitter, although the camera seems to have only picked up on the blue. Trust me, there's a little pink in there, too.
In direct sunlight, you can see the pretty sparkles. Without direct sun, you can see its lovely purple base.
I actually found it more difficult to apply than my other OPI nail polishes. Is it me or is the brush thicker in The Color To Watch? Anyway, that aside, I needed three coats to get this looking as awesome as it is in the bottle. Two coats looked pretty, but it was still sheer and I could see that it was a little patchy.
This was taken indoors: it's still a lovely metallic purple, even without the glitter being visible.
Otherwise, I'm in love with this colour. I think it's aptly named and wish my photos could do it justice. There's a much better (and larger) photo at Scrangie's blog.