60h power reserve18,000 vph (2.5 Hz)
The L951.7 is a manually wound movement made by A. Lange & Söhne. It is assembled from 454 parts. The balance beats at 18,000 semi-oscillations per hour, and the power reserve is 60 hours. A. Lange & Söhne fits it to the Datograph Up/Down. Its displays and mechanisms include outsize date, power-reserve indicator and chronograph.
Last updated 11 Oct 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Power Reserve
60h
Frequency
18,000 vph (2.5 Hz)
Display Type
Analog
COMPLICATIONS
Big DateChronographDateFlybackPower Reserve Indicator
QUICK FACTS
FOR WATCH DEALERS
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