The invention relates to a clock movement. The time travel system of the clock movement comprises a wind-up mechanism for providing a power for a second hand, a minute hand and an hour hand, wherein the wind-up mechanism comprises a handle shaft, a vertical wheel connected to the handle shaft in a sleeving manner, a wind-up wheel engaged with the vertical wheel, a wind-up steel wheel engaged with the wind-up wheel, a spring barrel provided with a spring, and a spring barrel cover, and a hand setting wheel is further connected to the handle shaft in a sleeving manner; the time travel system further comprises a power transmission wheel train matched with the wind-up mechanism and used for driving the second hand, the minute hand and the hour hand to run, the power transmission wheel train comprises a spring barrel gear arranged at the peripheral side of the spring barrel, the spring barrel gear is connected with one end of the spring, and the other end of the spring is connected with a spring shaft; the time travel system further comprises an escapement pallet swing mechanism for limiting the rotation speed of the power transmission wheel train, wherein the vertical wheel, the wind-up wheel, the wind-up steel wheel, the spring barrel gear, the spring barrel cover, the spring barrel shaft and the hand setting wheel are partially or completely made of plastic parts or plastic electroplated parts. According to the clock movement disclosed by the invention, the problems of high manufacturing cost, high machining difficulty and the like of the components such as the vertical wheel are solved.