This is easy...the blue CS. As typical with Journe he fixes issues over time. The first is that the Havana crystal washes the dial with an blue tint. Blue interacting over medium brown makes for a bad mix. (akin to the color of baby poop, as an old art teacher used to say) I photographed and color corrected the Havana dial to find a solution. As far as I can tell that shade of brown is unfixable. It tends to look like a weird green/brown. It needs to be either lighter and more yellow, like a champagne dial or darker and more orange, like the H&H. The Holland and Holland has a much more intense color and it does not suffer from the same issue. This also makes pairing straps more challenging.
