For sale is my Omega Seamaster Aqua Terra Railmaster Chronograph Model: 2512.52. Great watch, and you rarely see them for sale. Case diameter without crown is 42.2mm, and has the caliber 3205 automatic movement. I have not had the watch timed or pressure tested, but it is keeping good time. Comes with outer Omega box, inner red Omega box (some scuffs), white Omega card holder (some scuffs), and the Omega instruction book. Does not come with any cards. PM me with any questions, I'm open to reasonable offers. I'm not interested in any trades, unless it is one you yourself would entertain. This is a very nice example of a Railmaster chronograph... Price: $3450 net to me. Includes overnight insured shipping in the United States only. Payment: Paypal, Bank Wire, and I always welcome a FTF for cash at my office in the Chicago land area.