|Gem Nation -- Glossary of Diamond, Jewelry and Watch Terminology|
Quartz movements derive their name from the oscillator used in the movement. This oscillator is a very small piece of refined quartz rock that produces a piezo-electrical effect in the circuit. Quartz crystals are extremely accurate. They can be mass produced which makes them less expensive than mechanical movements which require a higher degree of craftsmanship. Quartz movements allow the watch to be worn without being wound.
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