It's just waterproof
At present, the exterior glass of many high-end watches is made of sapphire. Its composition with ruby is alumina, and its hardness, density and optical properties are basically the same as those of ruby. The difference is that the trace elements in sapphire are iron and titanium, so it is blue.
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Except for numbers, trademarks, factory names and brands, there is no need for other useless patterns to appear on the watch. It is especially important to keep this in mind when choosing a watch on formal occasions. If the patterns on the watch are strange and varied, it is not only not conducive to use, but may make people laugh.
wood tissue
The existing watchcase materials include alloy, steel, ceramics and silicone. Generally, the price of alloy watches is below that of 300 yuan, while the price of steel watches is above 1000 yuan (for example, Tissot watches are mainly steel watches). The price of ceramic watches varies from 500 to 2000 yuan according to the different ceramic materials, while the price of watches with silicone case is mostly below 1000 yuan.
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