The bell tower, which flanks the entire façade on the left, was rebuilt with public money from 1673 to 1675, because it was reduced to very precarious static conditions; this information was obtained from the manuscript on the history of Putignano by Avv. Casulli.
It stands on a mighty base, an almost gigantic plinth with a bull, and develops its turreted and blind body, highlighted in the corners by flat giant pilasters, up to the imposition of the gable of the facade.
About 35.5 meters high, it rises with the addition of two superimposed cells. A sharply profiled cornice broken at the edges divides the first unitary body from the first belfry. This, continuing its lines and structure, opens on the four facades in a deep round arch, inscribed in another blind, wider and connected to the first by a segment of shaped frame. It is crowned by a curving with a sinuous path surmounted by shelves and a clear linear frame. A second belfry, of reduced proportions but of the same shape and same structural and stylistic characteristics as the first, closes the entire body with a flat roof.
The bell tower is incomplete, incomplete in the crowning, during the restructuring phase it was decided to leave it that way certainly for reasons of structural statics.