Hi there! This is my first post so here goes. I have an old Omega Constellation and I would like to know the name of the modell or reference nr. Unfortunately I dont have access to a watchmaker or a tool to open the watch :/ I know its very difficult to identify a model without opening the watch but I wanted to check with the members here first. thankful for your help
Unfortunately, it's going to be next to impossible to identify this watch. These integrated bracelet case watches were popular only in certain parts of the world in the 1970's and early 1980's. Omega tended to have the jewelry work done locally and exported only the movements. Based on the general look of the watch, I would guess that there is a cal. 101X movement inside. Since there is no "certified chronometer" markings on the dial, perhaps a cal. 1010? You can try looking at the Omega Vintage Database in the "Show More Filters" area. http://www.omegawatches.com/planet-omega/heritage/vintage-omegas/vintage-watches-database Hope this helps, gatorcpa