as to value and vintage. I don't find it in any catalog but Tag-Heuer in St. Imier does verify that this model was produced. I actually went to the service center two weeks ago. It is 18k gold cased w/dust cover, unsigned modified 7734 with moonphase which, according to my research, was the correct movement for this model. Other manufacturers (longines, lorenz, breitling, etc,.) made a similar model and all had unsigned 7734's. Signed heuer crown. Overall condition is mint. Thanks guys! All others please contribute if you know something. PS: It will be for sale shortly.