Lens material of the 945 is the new Corning Gorilla Glass DX.
After only one week of use, I managed to scratch the Corning Gorilla Glass DX, like I usually do with all my new watches
Corning Gorilla Glass DX is great because it has less reflection and it is more clear. True. But I'm wondering why Garmin didn't use the Corning Gorilla Glass DX+ that is more scratch resistant than the DX: I would have paid 50 $ more if I had also scratch resistance similar to sapphire cristal.