Go for the original at a fraction of the price of a new one, safe in the knowledge that it will hold it's value. I would be more inclined to buy a really nice unrestored watch and enjoy wearing it. There is a joyous freedom in not being overly precious about your watch, in the way you would be with either a brand new or newly refurbished one. I have a really nice unrestored 'Racing' version that I enjoy wearing. While I don't abuse my watches there's a great freedom in knowing that it already has some signs of wear and it can always be totally restored if something really nasty happened. However, if you do want to have a 'like new' watch from the outset, even a very worn example can be restored to 'new' condition by Rocco Manfredi at 'Watchworks', giving you a two year warranty from an Omega accredited workshop. Just ensure that the case hasn't already been over polished and lost its profile and that the movement is clean and corrosion free - everything else can be replaced, although it would be better to have the original caseback, so that should be a consideration when buying a restoration project.