kvartsvis

Kvartsvis is a term used to describe quartz-based timekeeping devices, such as a wristwatch or a clock, in which the timekeeping element is a quartz crystal oscillator. The quartz crystal vibrates at a stable frequency when electrical current is applied, typically 32,768 Hz. A frequency divider converts these vibrations into a one-second signal to drive the display or the hands. Most kvartsvis devices are powered by a replaceable battery; some models use solar cells or other energy sources.

The development of quartz timepieces began in the mid-20th century, culminating in a rapid adoption during the 1970s, a period often referred to as the quartz revolution. Quartz movements offered superior accuracy, lower cost, and reduced maintenance compared with traditional mechanical movements. In many markets the shift contributed to the decline of mechanical watches, an era sometimes called the quartz crisis.

Kvartsvis devices come in analog forms with moving hands and digital forms with numeric displays. High-end models may use temperature-compensated crystals or additional stabilization methods and can achieve accuracies of a few seconds per month, while consumer models commonly target about ±15 seconds per month.

Maintenance is generally straightforward: replace the battery roughly every 1 to 3 years, keep the case sealed, and avoid strong magnetic fields. While highly reliable, kvartsvis devices can be more prone to battery-related failures than some mechanical watches, and some enthusiasts prefer mechanical movements for heritage or craftsmanship.