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As Corning unveils its latest Gorilla Glass, we ask: What happened to sapphire mobe screens?

Dave 126 Silver badge

The actual Omegas that went to the moon had acrylic crystals, though Omega's replicas have sapphire. It was feared that an accidental smash or possibly thermal shock might result in thousands of sharp sapphire shards floating around the confined space of the spacecraft. That's far more inconvenient than a slightly scratched watch.

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