The Citizen 4-160789 is a quartz chronograph movement, which is a variation of the 251.274 movement. It features a range of functions including sub seconds, chronograph, analog display, sweep seconds, quartz, calendar, and central hours, minutes, and chronograph seconds. Additionally, it has a small running seconds sub-dial at 6:00, a 30-minute counter at 10:00, a 1/10 second chronograph counter at 2:00, and a date complication at either 3:00 or 4:00.