Seiko 2E20

The Seiko caliber 2E20 is a small, rectangular quartz movement manufactured in Switzerland and found in Seiko ladies watches. It is a time-only movement with a two-hand display, powered by an SR521SW battery. A distinctive feature is its step motor with a fixed pulse system, which advances the hands every 20 seconds rather than continuously. This movement appears in select women's dress watches from Seiko.