[citation needed] The clock is installed in a Renaissance arch crossing the Rue du Gros-Horloge.
[2] The clock was originally constructed without a dial, with one revolution of the hour-hand representing twenty-four hours.
[3] The movement is cast in wrought iron, and at approximately twice the size of the Wells Cathedral clock, it is perhaps the largest such mechanism still extant.
The Renaissance facade represents a golden sun with 24 rays on a starry blue background.
[citation needed] The Gros Horloge has featured in paintings by J. M. W. Turner and the French impressionist Léon-Jules Lemaître.