In the watch manufacturing industry, sapphire crystal mirrors have become the iconic feature of wristwatches due to their performance and unique beauty. Sapphire watch glasses, although named "sapphire", are actually mostly artificially synthesized aluminum oxide crystals. Their hardness is second only to diamond, and they have high wear resistance, corrosion resistance, and good transparency, allowing the watch to maintain clear reading in complex environments. However, to ensure the surface quality and performance of sapphire crystal mirrors, it is necessary to comprehensively consider multiple aspects such as material selection, manufacturing process, and daily maintenance.

1、 Material selection and quality control

The quality of sapphire crystal mirrors needs to start from the source, that is, the selection of materials and quality control. Artificially synthesized sapphire glass is made from fine alumina powder as raw material, which is melted and recrystallized at high temperature. During this process, the purity of raw materials, temperature and time control of crystallization, and subsequent cooling treatment will directly affect the hardness, transparency, and internal structural stability of sapphire glass. Therefore, manufacturers need to strictly screen raw material suppliers to ensure the quality of raw materials, while adopting advanced production processes and strict quality control systems to conduct rigorous testing and screening on each batch of sapphire glass to ensure that its performance meets established standards.

2、 Manufacturing process and precision machining

The exquisite level of manufacturing technology is also crucial for the surface quality and performance of sapphire mirrors. After sapphire glass is formed, a series of precision machining processes such as cutting, polishing, and coating are required. The cutting process needs to be precise and error free to ensure that the size and shape of the watch mirror meet the design requirements; The polishing process requires a smooth surface like a mirror, without any scratches or defects; Coating treatment can further enhance the scratch resistance and anti glare effect of sapphire watch mirrors, improving the user experience. Manufacturers need to continuously research and improve their manufacturing processes, introduce advanced processing equipment and testing technology to ensure the quality of every sapphire crystal.

3、 Scratch resistance and corrosion resistance

The reason why sapphire watch mirrors are highly praised is largely due to their scratch resistance and corrosion resistance. However, even so, it is important to avoid direct contact with hard objects, especially materials with high hardness such as diamonds, grinding stones, sandpaper, etc., to prevent scratches. In addition, although sapphire mirrors have good resistance to most chemicals, it is still important to avoid contact with corrosive substances such as strong acids and bases under extreme conditions. For daily wear, regular cleaning and maintenance are also important measures to maintain the surface quality and performance of sapphire watch mirrors.

Ensuring the surface quality and performance of sapphire mirrors requires joint efforts from manufacturers and consumers. Manufacturers need to strictly control material selection and manufacturing processes to provide high-quality sapphire mirrors; Consumers need to pay attention to maintenance and upkeep in daily use to avoid unnecessary damage. Only in this way can we still shine brightly in the baptism of time.