First of all, this is a great first purchase!
Like you already said it's visable on the QC pics, so there is no way back about the rotor thing. Who cares it's on the back and almost nog vissable About the wite thing under the glass, that's a tricky one!
Maybe this is a nice read for you, I posted this yesterday:
Hublot Genuine vs. Replica comparison
http://www.rwgforum.net/topic/158488-hublot-genuine-vs-rep-comparison/#entry1225611