Omegafanman
·Not really. Sapphire crystal watches inc the earlier X-33s have been used in space for decades. Sapphire is not considered a red flag anymore. In the 60s when the Speedy was selected, the choice was plastic or brittle mineral glass. Sapphire wasn't widely used on watches and massively expensive so not even considered.
We have been round that loop a few times - and for sure Sapphire watches, laptops etc are common place in Space now.
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