EXPLORING DIFFERENT TYPES OF WATCH CRYSTALS
The crystal of a watch -- the clear cover that goes over the dial and protects it – can be made of a variety of materials. Generally, there are three types of crystals used in watchmaking: sapphire...
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Hardened Mineral glass vs. Sapphire Crystal glass
Generally a mineral crystal is an ordinary glass crystal that has been heat treated or chemically treated to withstand scratches. While it is not as scratch-resistant as sapphire, it is more scratc...
