Basin

The water goes down through a pipe with a damper and then it falls into a swinging basin divided into two equal sections

Spring

They are raised by the keeper every second alternatively and whatever the quantity of water starting the basin spring’s fall remains the same and so the pendulum’s swinging are perfectly isochronical.

Balance wheel

Water discharged from the two sections to the basin alternatively, goes down through two funnels linked to cross pipes, it falls over two mechanical blades placed at the bottom of the structure forming a kind of balance wheel and make them route synchronically to the pendulum.

Pendulum

Pendulum’s movement matches with the water discharged from the basin, so that it’s isochronism have the appropriate rhythm to make clock’s gearing advance regularly.

Time mill

Is the gearing which through appropriate gear ratios, receive motion and transmit it to the minutes wheel and to the four clock faces.

Bell

Every quarter of hour a basket suspended by two brass chains linked to the axle of a wheel, is filled with water; then it goes down under its weight, starting the bell and emptying itself out through a siphon.