How to Clean a Mineral-Glass Watch Face

Many watch crystals are made of mineral glass.
Many watch crystals are made of mineral glass. (Image: watch image by Igor Katz from

Mineral glass is tempered glass. Made from silica, it is commonly used for watch crystals, as it is scratch-resistant. Mineral-glass crystals can get cloudy and dirty over time, because of exposure to debris, dirt, oil and other environmental factors. To clean a mineral-glass crystal, follow some simple steps.

Things You'll Need

  • Soft, clean cloths
  • Rubbing alcohol
  • Toothpaste
  • Toothbrush

Dampen a soft, clean cloth with rubbing alcohol, and gently wipe the face watch in a circular motion.

Place a pea-sized amount of ordinary toothpaste on an old toothbrush or another small, soft-bristled brush.

In a circular motion, gently rub the toothpaste on the watch crystal. Do not brush too hard, as the mineral glass is scratch-resistant but not impervious to scratches.

Dampen a new clean cloth with water, and wipe away the toothpaste.

Use a new clean cloth to gently dry the watch face.

Tips & Warnings

  • Use care not to get the watch band wet. If possible, remove the watch band before cleaning the watch face.

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