I love this watch (4875.31.01). I actually walked into my AD looking to spend triple the cost of this watch for Hour Vision Annual Calendar (8601 cal.) but my small wrist made this watch the most attractive that I put on. Looks great on me. Very balanced. Doesn't shout but looks stunning. This is co-axial with the 2500 calibre and it is super accurate. Tested over my 3rd,4th, and 5th months of ownership with a camera for testing accuracy it was consistent at a rate of +10 seconds / month. This is a lot better than my Seamaster 300m which is +5/+6 a day.
I wanted to post this because I think this Prestige could use a little more prestige. Sadly, I think they've been discontinued as I only see the quartz version online. I think they are eliminating the mid-size "Prestige" and moving to "Prestige Co-Axial" and "Co-Axial Chronometer" which are bigger. Omega's stupid naming scheme as all three have the same look, are co-axial, and are chronometers. I almost didn't buy it because I couldn't find barely any reviews on it, but did because it was the watch I liked the most. So for those who are considering a similar watch or maybe a 2500 calibre I have to say that I'm more than pleased with mine.