L122.1

The manually wound L122.1 movement embodies A. Lange & Söhne's standards, featuring artisanal finissage visible through a sapphire-crystal caseback, including a hand-engraved balance cock with a whiplash spring for beat adjustment. The three-quarter plate of untreated German silver displays Glashütte ribbing, six gold chatons, and thermally blued screws, while the chiming mechanism includes black-polished gong hammers and a skeletonised bridge over the centrifugal governor, which ensures a uniform striking cadence.