[China Glass Net] How to distinguish the sapphire mirror of the watch from the ordinary glass mirror? The sapphire mirror of the watch and the ordinary glass mirror are really difficult to distinguish from the surface, but we still have some simple methods to distinguish.
1, scorn method
Gently tap the surface with your fingernails, remember that it must be light, fake is likely to be broken, if the sound is dull, it is the surface of sapphire crystal, if it is ordinary crystal or glass, the sound is more crisp.
2, qi method
On the surface, the sapphire crystal glass is quickly spread out. The general situation is that when you take your mouth off the top of the crystal, it will spread out. When you look at the surface, you can't see the fog.
3. Appearance identification method
It is to look at the logo of the watch and the hardness of the glass: if it is a regular brand watch, sapphire glass will generally be printed on the back cover of the watch, expressed in English SAPPHIRE or Sapphire Crystal, and now even a fake or counterfeit watch, using sapphire glass It is also very common.
4, nail scraping method
Scratching on the surface with a nail, the blockage indicates that the material of the watch is ordinary crystal, if the hand feels smooth and no resistance is sapphire.
The hardness of the sapphire glass is the second only to the hardness of the diamond. It has the characteristics of good hardness, not easy to wear and scratch, and has higher wear resistance than the crystal glass mirror. It should be noted that although this type of mirror can resist abrasion and scratch, it is not suitable for improper operation such as bumping, heavy pressure and heavy fall.
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