Greek Watch Forum - Το ελληνικό forum ρολογιών
Τεχνικά θέματα => Τεχνικά θέματα/ορισμοί => Μήνυμα ξεκίνησε από: george_ στις Ιανουάριος 29, 2023, 06:57:32 πμ
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Generally, there are three types of crystals used in watchmaking: sapphire crystals; mineral crystals; Plexiglas (often called plastic) or hesalite (acrylic) crystals. Depending on the cost of the watch, or the rugged functions of the watch, different crystals are used—influencing the price and value of the watch
https://theslenderwrist.com/hardlex-crystal/
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