I bought this Omega watch today at an antique shop who said they got their watches from a watch repairer. There was a good selection of old Longings and Omega watches. This watch was £125, much less than the De Ville Omega next to it for £300. My watch is lovely, in good condition, all of the lettering is perfect as well as the minute markers. It has ‘Omega' clearly written and ‘-swiss made-‘at the bottom, as well as the Omega sign on the winder at the side. I am worried about the fact that it has no ‘type’ written on it (e.g. seamaster, constellation, and I have not been able to find an identical looking watch on the internet. Should I be concerned? The label with it said c 630 (the type of manual) and that it had been serviced but nothing else about it.