Balance cock Small metal plate screwed to the visible side of the movement. It carries the balance wheel shaft bearing.

Diamond endstone A balance wheel shaft held in place by means of a diamond counter-bearing, or endstone, was one of the hallmarks of "1A" quality pocket watches made by Lange. In Lange tourbillon watches of the new era, diamond endstones limit the axial "play" of the carriage on both sides.

Gold chaton The gold setting of a bearing jewel - in Lange watches, chatons are often secured to the three-quarter plate with two or three screws.

Whiplash precision index adjuster An adjusting device composed of a steel spring in the shape of a swan's neck, a pointer, and a setscrew. The screw is used to adjust the beat, or the timing, of the watch in very small increments.

After his training was interrupted by World War II, Walter Lange continued his apprenticeship at the Glashütte Watchmaking School where he crafted this showpiece in 1946. - Gilt 1A quality movement: | Three-quarter plate, screwed | gold chatons, engraved | balance cock with | whiplash precision index adjuster and | diamond endstone, compensation balance with gold screws, lever and escape wheel in gold - Silver dial with inlaid gold wedges. Signature: Walter Lange, Glashütte i. Sa., 1946 - Smooth silver case