Did I purchase well for my dj turn-o-graph?

[p tol]

hi folks, i'm new here, bought my first rolex yesterday datejust turn-o-graph (brand new) at an authorized dealer and a little worried since:

1. there weren't any protective stickers on the sides (I overlooked this)
2. i found that the M serial dates back to 2007
3. i cannot find any info on the clasp code which reads 6NH.

Should I be worried that I bought a rolex (3-4 years old). I'm a little paranoid, but nevertheless I am happy with my purchase. Spent my hard-earned money for something that I have been wanting all these years. Thanks for all your input!