Thought the back couldn't scratch?

Discussion in 'Apple Watch' started by virginblue4, Apr 26, 2015.

  1. virginblue4 macrumors 68000

    virginblue4

    Joined:
    Apr 15, 2012
    Location:
    United Kingdom
    #1
    These scratches can barely be seen by the eye and even though only when a bright light is shone on them like in the photo.

    As you can see in the photo, the sensor covers have scratches on them? I thought this was also made of sapphire so as to not affect the reading. Am I incorrect?

    Is this anything to worry about?

    EDIT - So I feel stupid now, I wiped the back with my finger and these are actually small strands from the microfibres cloth, not scratches at all!

    [​IMG]
     
  2. SafariX macrumors member

    Joined:
    Jan 29, 2004
    #2
    Notice the part where it says "Ceramic Back"?
     
  3. virginblue4 thread starter macrumors 68000

    virginblue4

    Joined:
    Apr 15, 2012
    Location:
    United Kingdom
    #3
    Yes thank you, I didn't notice that.

    I also read this extract fro, the Apple website:

    'Because the back crystal is vital to the function of the technology encased inside Apple Watch and Apple Watch Edition, we chose zirconia, a type of ceramic, as the primary material. It’s nonconductive, so the antenna can perform without any interference from the crystal. It’s also opaque, which eliminates cross-talk between the components of the heart rate sensor. The manufacturing process begins by heating the zirconia at 2640 degrees Fahrenheit for over 30 hours. Once it cools, we incorporate the sapphire lenses of the sensor. Then we polish the entire back crystal with a grinding stone to an incredibly smooth, precise finish — with a surface roughness of just 3 nanometers — so that it feels comfortable next to your skin.'

    I misread crystal as being sapphire crystal, my mistake. Still, no need to be condescending :rolleyes:
     
  4. Natzoo macrumors 65816

    Natzoo

    Joined:
    Sep 16, 2014
    Location:
    Not sure where i am
  5. Esoom macrumors 6502

    Esoom

    Joined:
    Apr 30, 2010
    Location:
    Colorado
    #5
    Me too, glad you don't have any scratches
     

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