Quartz Movement refers to a type of watch movement powered by a battery, where a small quartz crystal regulates the timekeeping by vibrating at a precise frequency.
A quartz movement uses an electronic oscillator regulated by a quartz crystal to keep time. A battery sends electricity through the crystal, causing it to vibrate at exactly 32,768 times per second—a precise, stable frequency. An integrated circuit counts these vibrations and converts them to seconds, driving either a stepper motor (analog display) or digital display. The crystal's stability makes quartz far more accurate than mechanical movements.
Standard quartz movements achieve ±15 seconds per month—about 180 seconds per year. High-quality quartz like Seiko's 9F calibre achieves ±10 seconds per year. Thermocompensated quartz can reach ±5 seconds per year. By comparison, a COSC-certified mechanical chronometer achieves ±4-6 seconds per day. A basic quartz watch is inherently more accurate than even the finest uncertified mechanical movement.
Standard battery quartz is most common—accurate, low maintenance, battery replaced every 1-3 years. Solar/light-powered quartz (Seiko Solar, Citizen Eco-Drive) uses a photovoltaic cell, eliminating battery changes. Kinetic quartz (Seiko Kinetic) converts wrist movement to electricity via a rotor charging a capacitor. Thermocompensated quartz adjusts for temperature-related frequency changes. High-frequency quartz (Grand Seiko 9F) achieves exceptional accuracy through premium oscillator design.