Hardware Reference
In-Depth Information
Apple added an additional diamond-like carbon (DLC) layer to the steel to give it a
distinctive look.
The sapphire crystal used for the Apple Watch display is the second hardest transparent
material after diamond, which makes it perfect for using on a device that's strapped to
your wrist and susceptible to everyday wear and tear. It also makes the Retina display
underneath look spectacular, with vivid colors and a pin-sharp rendering. To harvest the
crystal, Apple used a very thin diamond-cutting wire; after which it was
precision-machined into its shape before being polished for many hours to give it a
sparkling look.
