1960 to 1967. He collected donations for it, made the clock, including all its parts, and maintained the clock until his death. The clock front is a simplified copy of the original. Calendar and planetary discs controlled by a complicated mechanical movement show the day and the month, the position of the sun and the moon, the signs of the zodiac (the thirteen astronomical signs, not the twelve astrological signs), the date of Easter, and the golden number. At noon, the clock chimes and a procession of figures passes in front of the figure of Christ, who blesses each of them. The figures originally represented the prince-electors of the Holy Roman Empire; since the post-War reconstruction, they represent eight representatives of the peoples of the world. Carillon After the War, a carillon with 36 bells was installed in the South Tower. Some of the bells came from St Catherine's Church in Danzig (now Gdańsk, Poland). On the hour and half-hour, choral melodies are played, alternating according to the season. Formerly the carillon was operated by a complicated electromechanical system of cylinders; the mechanism is now computer-controlled. At Christmas and Easter, the organist plays the clock chimes manually. Bells The 11 historic bells of the church originally hung in the South Tower in a bell loft high. An additional seven bells for sounding the time were made by in 1508–1510 and installed in the roof spire. During the fire in the air raid of 1942, the bells are reported to have rung again in the upwind before crashing to the ground. The remains of two bells, the oldest bell, the "Sunday bell" by Heinrich von Kampen (, diameter , strike tone a0) and the tenor bell by Albert Benningk from 1668 (, diameter , strike tone a0F#0), were preserved as a memorial in the former Schinkel Chapel, at the base of the South Tower The "Council and Children's Bell" made in 1650 by , which used to be rung for the short prayer services before council meetings and for christenings, was given to in 1906 and was thus the only one of the historic bells to survive World War II. Today it hangs in the tower of what is now the University of Lübeck hospital. The set of bells in the North Tower now consists of seven bells. It ranks among the largest and deepest-pitched of its kind in northern Germany.