Electronic movements, also known as quartz movements, have few or no moving parts, except a quartz crystal which is made to vibrate by the piezoelectric effect. A varying electric voltage is applied to the crystal, which responds by changing its shape so, in combination with some electronic components, it functions as an oscillator. It resonates at a specific highly stable frequency, which is used to accurately pace a timekeeping mechanism. Most quartz movements are primarily electronic but are geared to drive mechanical hands on the face of the watch to provide a traditional analog display of the time, a feature most consumers still prefer. made from high quality material. this watch comes with extremely durable. strap and promies to sit comfortably on your wrist watch disclaimer product colour may slightiy vary due to photographic lighting sources or your moniter setting. we manufacture durable and fashionble watches. we study the market trend and try our best to accmplish with the market demand . we manufacture wrist watches with lether belt or metal belt . this item promo code and research on market demand nd market velue
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