After more than two years of extensive repairs, Prague’s iconic metronome on Letná Hill is swinging once more.

The renovation, costing nearly two million crowns, was overseen by the metronome’s owner, PSN, which confirmed the completion in a recent press release.

The kinetic sculpture was erected in 1991, on the plinth left vacant by the late-1962 demolition of an enormous monument to former Soviet leader Joseph Stalin.

The silent red metronome was designed by international artist Vratislav Novák, and officially named “Time Machine”. It may be the largest metronome in the world, although Geneva (since 1972) and Gdańsk (since 2016) each have a larger pendulum clock.

PSN CEO Max Skala emphasized the cultural significance: “The pendulum is an important symbol of Prague. Since its installation, it has set the pace of running time while also commemorating the moment when our country regained its freedom after the fall of communism. We are proud to maintain it and to remind everyone daily of the value of freedom.”

The renovation involved a complete replacement of the gears, ultrasonic inspection of all welds, the addition of modern safety measures, and the installation of a new lighting and camera system.

The metronome also received a fresh surface finish, restoring its striking appearance.

Standing 25 meters tall and weighing seven tons, the metronome was originally transported to Letná by helicopter from the ČKD hall.

Intended initially as a temporary installation for the General Czechoslovak Exhibition, it has remained a fixture of Prague’s skyline for over three decades.

Its pendulum can tilt up to 60 degrees, driven by a two-ton weight, ensuring a steady and mesmerizing swing.

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