The utility model relates to a clock movement. A time-travelling system comprises a winding mechanism providing power for a second hand, a minute hand, and an hour hand, a power transmission gear train matched with the winding mechanism and driving the second hand, the minute hand, and the hour hand to operate, and an escapement fork pendulum mechanism limiting rotational speed of the power transmission gear train. The winding mechanism comprises a crank shaft, a vertical wheel sleeving the crank shaft, a winding wheel meshed with the vertical wheel, a winding steel wheel meshed with the winding wheel, a going barrel provided with a spring, and a going barrel cover. The crank shaft is also sleeved with a hand setting wheel. The power transmission gear train comprises a going barrel gear disposed on the periphery side of the going barrel. The going barrel gear is connected with one end of the spring, and the other end of the spring is connected with a spring shaft. Part or all of the vertical wheel, the winding wheel, the winding steel wheel, the going barrel gear, the going barrel cover, the spring shaft, and the hand setting wheel are made of plastic components or plastic electroplated parts. The clock movement solves problems that manufacturing cost and processing difficulty of the vertical wheel and other components are high.