This watch is one of my personal grails. Unusual dial for an Omega and an interesting story to boot - it was issued as a railroad timekeeping watch to the US companies in the mid-60's and apparently the Ball family sued Omega as the dial looked too similar to their design, which halted the latter's production of the watch. Comes with a solid Cal 550 movement as well. I would love to have one for the right price!
Edit: Well what do you know, everything I said is in the auction description. Doh! 馃榿