The glass of this watch is made of mineral crystal glass.

这种手表玻璃是由矿物水晶玻璃。

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From the watch watch material, vintage watches glass plastic watch will not be broken, but mineral crystal and sapphire glass surface now general is very easy to have broken the phenomenon.

从手表表蒙材质上来看，老式手表的塑料玻璃材质的表蒙不会出现破碎的情况，但是矿物质水晶以及现在通用的蓝宝石玻璃表面却很容易产生破碎的现象。

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From the watch glass material, plastic glass does not appear that the old watch burst, and the mineral table glass, especially popular sapphire crystal glass is more prone to breakage.

从手表玻璃的材质上看，老式手表那种塑胶玻璃不会出现炸裂情况，而矿物的表玻璃，特别是现在流行的蓝宝石表玻璃却比较容易出现炸裂。

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