Why did NASA make hesalite the watch glass requirement for space? Isn't sapphire the stronger and more scratch resistant option of the two? - Quora
![Omega Speedmaster Professional Moonwatch - Hesalite sælges for 38.422 kr af en Privat sælger på Chrono24 Omega Speedmaster Professional Moonwatch - Hesalite sælges for 38.422 kr af en Privat sælger på Chrono24](https://cdn2.chrono24.com/images/uhren/21917197-gbvimvn456hrhrjl6ydr6wf0-Large.jpg)
Omega Speedmaster Professional Moonwatch - Hesalite sælges for 38.422 kr af en Privat sælger på Chrono24
![OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine](https://swisswatches-magazine.com/wp-content/uploads/2021/06/OMEGA-Speedmaster-Professional-Moonwatch-with-Hesalite-Crystal-31130423001005.jpg)
OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine
![OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine](https://swisswatches-magazine.com/wp-content/uploads/2021/06/OMEGA-Speedmaster-Professional-Moonwatch-with-Hesalite-Crystal-vs-Sapphire-Crystal.jpg)
OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine
![OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine](https://swisswatches-magazine.com/wp-content/uploads/2021/06/Hesalite-vs-Sapphire-Crystal-OMEGA-Speedmaster-Moonwatch.jpg)
OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine
![OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine](https://swisswatches-magazine.com/wp-content/uploads/2021/06/Moonwatch-Hesalite-OMEGA-Logo.jpg)