I was very interested in the Certina moonphase chronographs, however at 42mm they are just too big for my 6 1/4 inch wrists. I was browsing around the Certina website and I came across the Certina DS First Lady Chronograph Moonphase
This is a 38mm moonphase chronograph with the Precidrive movement so it should run at 10s / year. Now yes it is technically a "lady's" watch, however that's not something I would let stop me. Really the only "lady's" style feature is a star-shaped diamond as the 10 o'clock index but its pretty subtle. The fluted ceramic bezel is pretty sweet (reminds me a little of the Tudor North Flag).
MSRP is $840, I was able to find it for under $300 from Jomashop.
It is a terrific piece. My only complaint is that is rather thick. For the price though I can't see how it can be beat