The L921.4 is a self-winding movement made by A. Lange & Söhne. It is assembled from 378 parts. The balance beats at 21,600 semi-oscillations per hour, and the power reserve is 46 hours. A. Lange & Söhne fits it to the Grand Langematik, Langematik and Saxonia Automatic. Its displays and mechanisms include outsize date and ZERO-RESET mechanism.
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Power Reserve
46h
Frequency
21,600 vph (3 Hz)
Display Type
Analog
COMPLICATIONS
QUICK FACTS
FOR WATCH DEALERS
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Watches with this movement
A. Lange & Söhne
Langematik
308.021
A. Lange & Söhne
Langematik
308.025
A. Lange & Söhne
Langematik
308.027
A. Lange & Söhne
Langematik
308.031
A. Lange & Söhne
Langematik
308.032
A. Lange & Söhne
Langematik
308.047
A. Lange & Söhne
Grand Langematik
309.021
A. Lange & Söhne
Grand Langematik
309.025
A. Lange & Söhne
Grand Langematik
309.031
A. Lange & Söhne
Saxonia Automatic
315.026
A. Lange & Söhne
Saxonia Automatic
315.032
A. Lange & Söhne
Saxonia Automatic
315.033