Black Silkprinting Laser Curved Shape Sapphire Glass Crystals for Wristwatches

Mineral or Sapphire? Hard to decide?

If you are really tough on your watch and need it to take a “beating”, then sapphire is clearly the way to go. If you are not that tough on your watch and are unsure whether you really need sapphire, then you can always order your watch with a regular mineral crystal. If you find it gets scratched up over the first year or two, then you can just ask our Service Department to upgrade your watch to a sapphire crystal, next time you send it in for service.

When it is heated, the synthetic sapphire forms round masses, that are then sliced into pieces with diamond-coated saws. These disks are then ground and polished into watch crystals. (One reason sapphire crystals are relatively expensive is that the tools required to cut and polish this extremely hard material are very costly.) Sapphire (whether natural or synthetic) is one of the hardest substances on earth. It measures 9 on the Mohs scale, which is a system for rating the relative hardness of various materials.