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Watch Crystal
 
Watch crystal is a transparent cover that protects the watch face.
     
Material :
Acrylic Glass / Plexiglass
Glass /Mineral Glass
Synthetic Sapphire
     
Advantages and Disadvantages of each material :
 
Advantages
Disadvantages
Acrylic Glass / Plexiglass
cheap
most likely to be scratched
 
least likely to shatter
Glass /Mineral Glass
scratch - resistant
more likely to break
Synthetic Sapphire
most scratch resistant
most expensive
     
Synthetic Sapphire

One of the hardest substances on earth. It measures 9 on the Mohs scale - Diamond measures 10, the highest rating.

However, if struck sharply and from the correct direction, sapphire will shatter.

     
Remove the scratch on Acrylic Galss / Plexiglass - Caution ! No guarantee ! Try on your own risks !

1. Put some toothpaste on the Acrylic Galss / Plexiglass and rub it gently with a soft damp cloth.

2. Put some Brasso on Acrylic Glass / Plexiglass and rub it gently with a soft dry cloth.

Brasso Caution ! No guarantee ! Try on your own risks !

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