Looking to buy first Vintage Omega and need help

I'm new here and new to vintage Omega's. I'm looking to make my first purchase and need some help. I'm looking at this one and wanted some opinions on if it was worth it to buy or if I should pass. I can't tell if it's a redial but I don't have enough experience with vintage Omega's. Any help would be appreciated, thanks!

http://www.ebay.com/itm/151524760511?_trksid=p2055119.m1438.l2648&ssPageName=STRK:MEBIDX:IT