The Citizen 4-151224 watch movement is a hand-wound, column-wheel operated chronograph with a full calendar. It features a 30 minute and 12-hour totalizer for precise measurement of elapsed time. The day and month are displayed through windows, with a date corrector located in the caseband at 8:00 and a month corrector at 10:15. Additionally, the movement includes a pointer date and moonphase at the 12:00 subdial, with a moonphase corrector situated in the caseband at 9:45. The movement encompasses the functions of a chronograph and calendar.