Chief,
I just did the exact same thing about 2 weeks ago. My son was born in 2004 also and I bought a very nice F model that was purchased in 2004 from the original owner and I'm assuming made in '04.
I'm going to wear the watch with the full intention of giving it to him at some point in my life (or by will if that comes first). I'm very careful with my watches/jewelry, so I expect it to be in fine condition when he receives it. I think any marks that do get on the watch will have some sentimental value for my son since he knew his old man wore it.