Hello! I am new here and this is my first post! English is not my native language so there might be some grammer errors. I knew my dad had an old watch stuffed away in a deskdrawer that he got from his dad. It has probably been in there for at least 20 years. But I have never really given it much attention. My grandad was the only one who ever wore it and he passed away in 1972. Today I decided to check it out and google it to find out anything about it. In my opinion it looks alot like the Omega Speedmaster 2915. I have not opened it to verify since I don't have the right tools and don't want to scratch it. My dad didn't know very much about it, but said he was fairly certain that everything was original. Except for the chain. It has a small dent on the left side of the bezel. What do you guys think?