Quartz Watch
A quartz watch tells the time using a quartz crystal that a battery makes vibrate. It is far more accurate than a mechanical watch and needs next to no maintenance, drifting just a few seconds a year and running for years on a battery, or on light.
In a quartz watch the battery feeds current to a tiny quartz crystal, which vibrates exactly 32,768 times a second. Because that beat is so steady, quartz is far more accurate than any mechanical watch. The seconds hand ticks once a second, rather than gliding smoothly as a mechanical movement does. The battery is swapped every few years; on light-powered models such as the Citizen Eco-Drive there is no battery change at all. For most people who want accuracy and no fuss, it is the sensible choice.