I wanted to add that you should check out the older watches with diamonds vs. older watches with romans. I'm not sure why, but the diamonds must get dusty and thus appear duller over time. I always hate the diamonds on a much-loved watch but they do look great in the beginning. You could get it cleaned annually, but at several hundred bucks a pop for servicing/cleaning, I'd prefer the romans to keep it looking fresh.
Interesting I haven't thought about that!