2nd Gen body discolouration

Hi everyone, just asking if anyone else has experienced this.

Got a 2nd generation black 360 a couple of days ago and it's been charged overnight twice.

I noticed discolouration on the watch body where the straps attach.

Is this normal or should I take it back to the shop?



Thanks for looking :)

Sent from my Nexus 6 using Tapatalk

Download from this link