1967 Speedmaster Professional Cal 321 (145.012) Pre Moon.
I've been wanting a 321 Pre Moon for a while now. So, I thought as long as I was selling some watches, I may as well sell one to get this. Very Happy with it. It's smooth as silk. The case shows some age, but not as much as I thought it would, and what do you expect for a tool watch that's 42 years old. Dial and hands are new, which I like.