Krysterna Crystal. An obscure watch glass, ‘Krysterna’ is the name given to the crystal used by the brand Stuhrling and its subsidiary Akribos brand. Little is known about this material and its performance. Stuhrling make plenty of bold claims, marketing this as the best material for a watch dial. A primary selling point being that this
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Sapphire is around 67 percent heavier than Gorilla Glass, with a density of 3.98 g/cm3 compared to the 2.54 g/cm3 used for Apple’s existing iOS devices. and much stronger than Gorilla GlassSome people 'just don't want to see' the difference between sapphire and gorilla glass. Amazon also sells scratch-resistant tempered glass screen protectors at very cheap prices. And I did a search and found that AR coated sapphires can be scratched. It was easy to see posts about scratched sapphires in the luxury watch community. Ahead of Apple’s new product announcement Tuesday, the chairman and CEO of Corning made his case for why mobile device makers should use his company’s Gorilla Glass over competing sapphire The wonderful thing about plastic and glass crystals is the fact that they can be custom cut, shaped, or trimmed to fit different watch cases. Typically in the luxury watch field, sapphire crystals are preferred. Sapphire is extremely strong and scratch resistant – making it the top choice for a fine timepiece.
There is a video of one watch manufacturer dropping large ball bearings onto various watch crystals from a height of roughly 20". Results are interestingI'll try to find the video. In the meantime, there is THIS video of gorilla glass vs sapphire smartphone screens being tested, and demonstrating the brittle nature of sapphire.
Gorilla Glass Victus unveiled: survives 2m drops and has twice the scratch resistance Counterclockwise: the rise of Gorilla Glass and how it changed the phone industry Reader comments
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