The Seiko Y977-6A50 watch movement is an electronic movement that provides accurate timekeeping functionality. It is powered by a battery and relies on a quartz crystal for precise oscillation. The movement features hours, minutes, and seconds hands for time display. It is also equipped with a date function, displaying the current day of the month. The Seiko Y977-6A50 movement operates through an electronic circuit that regulates the flow of electricity to ensure accurate timekeeping. It is a reliable and efficient movement commonly used in electronic watches.