Hi IWC,
Your picture illustrates it perfectly. The printing is generally considered to be "cream", call it a low intensity yellow. In bright daylight the numbers and hands look cream and the dial looks brownish. It leans towards an orange-brown.
Indirect daylight, which is how we see our watches a lot of the time has a bluish hue. It interacts with the cream printing and the coating on the sapphire making the numbers look greenish.
To make this easier to see, I pulled it into photoshop and used the eye dropper to show the color.
I think the problem is that the color combination of the cream, brown, sapphire, and daylight make for a strange green and a muddy brown.
The Holland and Holland has a much more saturated brown. It makes the hands appear more white. My guess is it is the same cream that is on the CB, H&H and Havana. But color is contextual so the dial color has a huge influence on how it reads. CB works, H&H also works, Havana only works in warm light. In a lot of other lights it looks greenish or greyish in a way that personally does not strike me.
We don't know each other and this is an easier conversation to have in person. It is a bit like the difference of a C instead of a C sharp. It just sounds a bit off for the song. In a different context each element could work. But in spite of the market popularity and pleasure I imagine any owner has with the Havana, from a color point it has a dissonance that feels like striking a sharp note.



