Message not clear you like it or you don't? The 317 is strictly speeking the same size as the 311, so I don't see how only one of the two could be too thick.
As for the color it's a mat black (not plastic) and if I had wanted something shinny I would have chossen a Chanel J12. For some reason I did not find that manly enough choice.
Anybody else think it looks like a Casio?
This having been said the 311 is very nice and it is the watch that lead me to discover the 317.
George