• The scratch-resistant mineral crystal is sapphire.
    Answered on 7/14/2016 11:01:08 AM by Product Specialist Greg from Sierra Trading Post
  • this is indeed sapphire crystal which is more scratch resistant than hardened mineral crystal and is why this is more expensive than other watches on here hat look exactly the same. i looked on the bertucci website.
    Answered on 10/15/2016 8:24:11 PM by cutter from new mexico