Rolex 114060

[imperial2687]

Dear all, I recently purchased a 114060 (2013 model) and am a little suspicious of the bracelet's authenticity. I noticed that the part of the clasp with the rolex insignia has a 'frosted background' (see my photo, mine is the first one), whereas other examples that I have seen on the internet have a high shine/ silver gloss finish. Is this something to worry about? Is this a genuine bracelet clasp?

Also, how much bracelet stretch can you expect for a 7 year old 114060

Thanks for your advice, and stay safe and healthy everyone