The sapphire mirror of the watch, you don't know the word well when you are familiar with the watch, but why is its mirror not blue? Why did you make it? Cartier Blue Balloon "Dancing" High Jewelry Watch Is the sapphire mirror blue? Nowadays, the first thing to identify a good watch is whether its mirror is a sapphire mirror. Are you curious to call it a sapphire mirror instead of a ruby? Is sapphire necessarily blue? The relationship between sapphire mirror and sapphire: SAPPHIRE CRYSTAL generally refers to synthetic sapphire, which is very different from the jewel that people usually understand - natural sapphire. It is generally used in the manufacture of watch mirrors. It is a wear-resistant material with tungsten-titanium alloys and high-tech ceramics. Advantages: sapphire mirror: high-strength scratch-resistant, sapphire hardness, sapphire watch, its shock resistance, sealing and strength are higher than other materials. Whether it is from a cultural cognition perspective or from the investment direction and scale of the watchmaking industry, the sapphire mirror is still an identifier for top watches in the foreseeable future and remains a factor in the quality of top watches. The only downside is that it is extremely fragile. Is the sapphire crystal better? The answer is yes, because it won't be scratched. Sapphire is very hard and is an inevitable choice for top watches. For example, all new Rolex uses sapphire crystals. However, like glass, it is brittle and easily broken. Therefore, once the sapphire mirror is broken, the resulting maintenance cost will be very expensive, because the watchmaker must carefully check the lens to ensure that no sapphire is left in the movement before changing the lens. The Iphone5s uses a sapphire mirror. Fabric Dye,Polyester Fabric Dye,Microfiber Fabric Dyed,Polyester Microfiber Dyed Fabric ZHEJIANG HONGFENG SCI-TECH CO., LTD , https://www.hfmicrofiberfabric.com