The Citizen 4-087372 is a quartz movement that features both analog and digital displays. It is specifically designed to accurately display time in a precise manner. The movement is driven by a quartz crystal oscillator, which ensures stable and accurate timekeeping. The analog display indicates time through traditional hour, minute, and second hands, while the digital display can show additional information such as date, chronograph functions, or time in different time zones. This movement does not include any other functions beyond those listed above.