The Kremlin bells will be silent for ten days at midnight on November 6 the main state clock in the Spasskaya Tower of the Kremlin will stop. The reason is scheduled maintenance, the FSO reported. The bells will only start working again on November 16. The famous clock mechanism is more than 250 years old. It weighs about 25 tons, occupies three floors of the tower, and the diameter of each dial exceeds six meters.