Hello everyone, I'm here to ask you some information about a 1970s Omega Constellation. I don't knot much about the watch, I attach a photo. I found this on the web: https://www.omegawatches.com/it/watch-omega-constellation-omega-ba-153-0029 and I think that my watch is the same, but both the strap and the case are in gold. Thank you in advance for cooperation!
Search “Omega Constellation Ultra-Thins of the Sixties and Seventies” and it should lead you to a review by Desmond over at his brilliant website on all things Omega Constellation You need to take it to a competent watchmaker as all you need to know is inside the case back, and on the movement itself But i wouldnt be surprised if your watch is an ultra thin, and related to the models shown in the review alluded to above Best of luck