The Seiko 4206-0490 watch movement is a quartz movement that combines various functions. It includes an alarm function, allowing the user to set and be notified of specific times. The movement features an analog display, utilizing traditional hour, minute, and second hands to display time. In addition, it incorporates a digital display, which can show additional information such as date or dual time zones. The H357A movement also includes a sweep seconds function, providing a smooth continuous motion of the seconds hand. These mentioned functions make the Seiko 4206-0490 movement a versatile option for timekeeping purposes.