A digital watch display that shows the time electronically by means of a liquid held in a thin layer between two transparent plates. All LCD watches have quartz movements. Most watches today have electronically controlled quartz movements and are powered by a battery. However, mechanical watches are currently enjoying a resurgence in popularity. The inner mechanism of a watch that keeps time and moves the watch's hands, calendar, etc.
Movements are either mechanical or quartz.
A battery reserve indicator on a quartz watch informs the wearer when the battery is low. Often this is indicated by the seconds hand moving at two or three-second intervals. When a Seiko Kinetic needs to be wound, the seconds hand will also move in two second intervals. A movement powered by a quartz crystal to. Quartz crystals are very accurate.