Travertine; stucco

Design:

• Giuseppe Valadier (1762 – 1839)

Clock face:

• Filippo Carlini and Antonio Castellini

Angels:

• Andrea Bergondi and Giuseppe Angelini

Clock meccahnisms:

• Fiorelli di Ariano

Ornaments:

• Francesco Antonio Franzoni

1786 – 1790

Diameter:

• 4 m circa

Southern corner of Basilica facade

  The clock known as Oltremontano is placed over the southern corner of the facade of St. Peter’s basilica, and is identical to the one situated at the opposite end. It was erected between 1786 and 1790 in a project, initiated by the goldsmith Luigi Valadier and continued by his son Giuseppe.
     The clock is formed by a circular dial of about 4 meters in diameter flanked by two angels in travertine that support the papal tiara with crossed keys. The dials are stucco. The dial is divided into 12 hours, the equivalent to our modern astronomical system and computes the time in 24 hours, from midnight to midnight.
     In 1957, the manual winding mechanisms were replaced an electrically operated one.

Construction project