Peter Crawford
Seems like real sapphire glass, it hasn’t scratched yet and I’m hard on my watch. Seems accurate to size.

Timothy Harris
I thought I had a picture, but it basically went from 'Uber' scratched, to so pretty it feels like new.I used this for my Seiko SNA027. It came with the single dome lens, so I took my time and found a very similar lens that was Sapphire.I highly recommend, it's a very nice replacement lens.

David Bailey
My watch: Daniel JeanRichard Chronograph, had a mineral crystal that shattered into pieces after taking a hard hit. After removing the glass (actually it fell-out on its own without any help from me), I decided to replace it with a 'sapphire' crystal, which is harder than the original mineral crystal - and much more resistant to breakage.Tools needed and purchased from Amazon, for replacing watch crystals: Digital Caliper and watch crystal-case back press.Once I knew the exact crystal size using the "caliper", I order the crystal. Its fit was perfect, but wasn't a direct drop-in. Here's were the "watch crystal press" comes into play. Slowly rotating the case and applying pressure with each turn of the watch case the sapphire crystal fully seated onto the water resistant gasket inside and just above the watch face, I was done. Very Happy, I did it myself!