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The Swatch Autoquartz is a technology that combines the advantage of an automatic, batteryfree movement with quartz precision and reliability. The kinetic energy generated by the oscillating weight in the Autoquartz is transformed into electricity. This is stored in a capacitor and monitored by a tiny electric circuit and quartz oscillator to produce the sort of precision typically associated with quartz. The capacitor holds enough power in reserve to keep the watch going for a full 100 days even when it is not being worn.