Jaeger-Lecoultre 450/4C barrel 180

Jaeger-LeCoultre

Founded in 1833 by Antoine LeCoultre, Jaeger-LeCoultre is a revered Swiss haute horlogerie manufacture, often called the Grand Maison" of the Vallée de Joux. The brand holds over 1,200 calibres and hundreds of patents, known for its exceptional technical prowess and artistic finishing. Famous models include the Reverso, with its iconic reversible case, the Master Ultra Thin, and the Polaris. Jaeger-LeCoultre is a true manufacture, developing all its movements in-house, such as the Calibre 899 and the complex Calibre 101, the world's smallest mechanical movement. It embodies the pinnacle of Swiss watchmaking artistry and innovation."

Barrel

The barrel is the part of a mechanical watch movement that houses the mainspring, which stores and releases energy to power the watch. As the mainspring unwinds, the barrel transfers power through the gear train to keep the movement running. Barrels may be replaced during servicing when teeth, arbor holes, covers, or internal components show wear or damage.