I believe its the same thing as the M. I got mine as a N too, fits the "Noob" naming, love it.
Maybe it's my eyes but is it hard to see if "Officine Panerai" is engraved on the movement on your watch?
I can see that is is engraved on mine with bare eyes.
I held it up in the light and can tell now. One glaring thing that I'm noticing now though is that there appears to be a smudge or imperfection under the first A in PANERAI. To make matters worse, the "I" looks incomplete or short. Almost like a "!" without the dot. There was a poor job done on the painting of the engraving there it seems. Not sure if it's worth fussing over, but it does kind of bug me.
that is why u must have qc pics from the dealer.. noob factory engravings are prone to this kind of problems