watchatlasSapphire, mineral or Hesalite? Your watch crystal is one of the three.
Sapphire: lab-grown corundum, 9 on the Mohs scale. Resists everyday scratches, but a hard knock can chip or crack it.
Mineral glass: hardened glass. Costs less and scratches more easily.
Hesalite: acrylic. Scuffs easily, but light scratches polish out, and it tends to crack rather than shatter.
Which one is on your wrist right now?
Footage is AI-generated and illustrative.
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