The square shape was built with large blocks of stone and carefully arranged to create a solid wall structure. It is likely that it was once crowned with turrets before its transformation into a bell tower, and then into the clock tower.
Located to the right of the church of San Nicola, the front elevation has a single belfry and, on the top level, two single openings. The best preserved section is, however, the rear where, at the summit, we can still see the tops of the support brackets and the machicolation openings. Lower down on the vertical wall, is a clock - installed at a later date - a belfry and a square window.
The rooms that house the bells were made when the tower became the bell tower of the nearby church of St. Nicholas.