42h power reserve21,600 vph (3 Hz)
The L931.4 is a manually wound movement made by A. Lange & Söhne. It is assembled from 237 parts. The balance beats at 21,600 semi-oscillations per hour, and the power reserve is 42 hours. A. Lange & Söhne fits it to the Cabaret. Its displays and mechanisms include outsize date.
Last updated 11 Oct 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Power Reserve
42h
Frequency
21,600 vph (3 Hz)
Display Type
Analog
COMPLICATIONS
Big DateDate
QUICK FACTS
FOR WATCH DEALERS
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