Longines 12.68Z barrel

Longines

Founded in 1832 by Auguste Agassiz, Longines is one of the oldest and most respected Swiss watch brands, known for its elegant timepieces, precision sports timing, and strong aviation heritage. The brand's winged hourglass logo is the oldest registered trademark for a watchmaker. Famous models include the HydroConquest, the Master Collection, and the Spirit, a tribute to pioneering aviators. Longines has produced numerous iconic in-house movements, such as the Calibre 13ZN and 30CH chronographs, highly prized by collectors. Longines continues to embody Elegance is an attitude," blending tradition with contemporary appeal."

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.