The 5296 is a very nice watch. The think you'll really enjoy the sector dial, with it's subtle change in color (depending on how the light catches it; grey to silver, and silver to grey). The blued hands also add visual interest to the dial.
I personally would never dream of having this case polished (unless the watch had been severely damaged). Whether the watch is rhodium plated or not, would not matter, I still would not polish. I personally prefer the watch to be in it's natural state (I'm a bit of a purist that way).
Best of luck.
Arthur.