Hi
Well if you want a GT case - I don't think you can go far wrong with a Duo. I think it is available is rose gold, its also a nice complication, but doesn't look like it until you flip the case over and see another dial on the reverse side of the case.
The dark side of a Reverso Duo
I also think that the earlier version with the pushpiece rather than the button is more elegant in terms of looks, though the newer one may have great useability/funcyionality.
Cheers
JML