Quartz Watch
A quartz watch keeps time using a quartz crystal that a battery makes vibrate. It is far more accurate than a mechanical watch and needs almost no maintenance, drifting only a few seconds a year and running for years on a battery or on light.
In a quartz watch, the battery sends current to a tiny quartz crystal, which vibrates exactly 32,768 times per second. Because that beat is so regular, quartz is far more accurate than any mechanical watch. The second hand ticks once per second, rather than the smooth sweep of a mechanical movement. The battery is changed every few years; on light-powered models such as Citizen Eco-Drive there is no battery change at all. For most people who want accuracy with no fuss, it is the right choice.