A. Lange & Söhne L952.2

The L952.2 is a manually wound movement made by A. Lange & Söhne. It is assembled from 729 parts and runs in 58 jewels. It measures 32.6 mm in diameter and 9 mm in height. The balance beats at 18,000 semi-oscillations per hour, and the power reserve is 50 hours. A. Lange & Söhne fits it to the Datograph Perpetual Tourbillon. Its displays and mechanisms include outsize date, power-reserve indicator, day/night indicator, moon-phase display, tourbillon, chronograph, day-of-week display and perpetual calendar.