The world's 3rd. biggest clock was installed at Abbasabad district of the capital city on Tuesday in a ceremony attended by a number of urban officials.
'Flower Clock' which measures 15 meters in diameter and weighs 750 kgs was installed at a cost of six hundred million rials.
The clock was built by the private sector in cooperation with Tehran Municipality in two years.
The private sector is entitled to use necessary facilities in the vicinity to publicize the `Flower Clock' for three years to recoup the expenses incurred in its design and construction.
The clock is equipped with separate motors to set its triple hands in motion. It is designed to operate with minimum error and is automatically set up by a computerized system.