This one is very quickly becoming a favourite piece of mine and is even replacing my Speedies in my affections these days.. It's certainly a somewhat idiosyncratic piece with the Dubois-Depraz module in it and it's weird hacking behaviour but it really wears well and makes me smile every time I look at it.. Just back from STS, it's looking like new and running the same .......
Just when I thought I had seen every type of Omega watch...wow...this is very cool...especially on that strap.
It's 38mm without the crown and about 41mm with it, which I find a very comfortable size. With the chrono module it's quite a tall piece but feels nice on. I prefer wearing it on the NATO as opposed to the bracelet it came with, as you say it goes with the pilot style nicely.
IMHO these are way underrated. I have one of these on original bracelet as well as the time only version.