⏰ Gros Horloge
14th-century astronomical clock in Rouen, Normandy
📋 Fast Facts
- Established in 1389, one of France's oldest surviving clock mechanisms
- Located in a Renaissance arch spanning Rue du Gros-Horloge in central Rouen
- Features astronomical dial indicating solar and lunar cycles
- Still functioning after more than 630 years of continuous operation
The Gros-Horloge (Great Clock) stands as one of Western Europe's most significant horological monuments. Installed within a striking Renaissance archway that traverses Rue du Gros-Horloge in Rouen's medieval quarter, the clock's mechanical movement dates to 1389, making it among the oldest functioning mechanisms of its kind in France. The astronomical dial reflects medieval understanding of celestial mechanics and timekeeping ...