Just bought this watch from my watch guy, the problem is that I can't open it to find the reference number, he told me is kind of tricky opening this watch because he said something about pulling out 2 pins and I really don't want to scratch it, and most important didn't want it to show too much interest in the watch because if I did the price was going to increase dramatically and if you are in the buying and selling business you know what I mean. Too bad the dial has a blemish, it has an Omega bracelet but I don't know if it came with the watch and it has the original crystal. Anyhow, your help is much appreciated.
It's a 155.0006 "Deauville" created in 1973 with a caliber 684. And you were correct not to show much interest in it. Not many collectors will either.