Synthesising a coloured sapphire involves incorporating dopants into the aluminium oxide crystal structure, with different ...

Sapphire is a term that is often misused. Watch-makers sometimes use the words sapphire, glass or crystal to designate the cover that protects the dials of their watches, but they can be made of ...

While many Apple products have a sapphire crystal, how pure is the one available on the Apple Watch Ultra, and how does it compare to some of its competitors, the Samsung Galaxy Watch 5 and Garmin ...

Richard Mille was the first to make a watch case entirely of sapphire crystal in 2012, so the material is a bit of a specialty at the house. Creating colored sapphire crystal is an added layer of ...

Richard Mille was the first to make a watch case entirely of sapphire crystal in 2012, so the material is a bit of a specialty at the house. Creating colored sapphire crystal is an added layer of ...