What are the materials of common watch mirrors

Table mirrors can be divided into plastic mirrors, quartz glass mirrors, and sapphire mirrors according to their materials. The rubber lens is relatively not afraid of falling, but it is easy to wear, and the sapphire crystal is the most wear-resistant.

Common materials for watch cases and straps include plastics, copper, stainless steel, tungsten-titanium alloys, high-tech ceramics, and gold. Sapphire glass, tungsten titanium alloy and high-tech ceramics are materials that are not easy to wear

sapphire watch glass，Sapphire glass has a hardness of 9 on the Mohs level, while tungsten-titanium alloy has a hardness of 8, and high-tech ceramics is relatively inferior to level 7. Although these materials are not easy to wear, they cannot withstand strong impacts. At the same time, some materials with the same or higher hardness, such as diamond, corundum, oxidized metal, and quartz crystal, may damage these materials.

Grinding stones, sandpaper, nail files, granite surfaces, concrete walls and floors all contain the above substances, which will scratch the surface of these materials. The case and strap of the watch should be cleaned frequently, and the watch should avoid contact with various chemicals. Once it is touched, it should be cleaned in time to avoid discoloration and peeling of the coating.

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