To borrow a phrase, I need to thin the herd, as I have been on a buying spree. Up for sale is my Omega Constellation Chronometer Ref 168.045 with the beautiful caliber 751 movement. And the 18K white gold bezel. I don't know the service history. There is a marking on the case back that would seem to indicate a service in 2016, but it is running a little fast and may need a service or adjustment. Price is REDUCED TO $500 shipped CONUS. Other destinations at cost. Payment by wire or PP F&F. No returns, so please ask questions in advance. Happy to answer questions (if I know the answer ).