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Brand: | A. Lange & Söhne | 
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| Family: |
Unknown
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| Height: | 8.0 mm | ||
| Jewels: | 45 | ||
| Reserve: | 36 hours | ||
| Frequency: | 18,000 A/h | ||
| Winding: | Hand winding | ||
| Diameter: | 32.0 mm | ||
| © A. Lange & Söhne | Complications: | 122-Year Moon Phase, 3-Button Chronograph, 8-Column Chronograph, Big Date, Chronograph, Column Wheel Chronograph, Date, Day, Day by Pointer, Double Wheel Big Date, Leap Year, Month, Month by Pointer, Moon Phase, Perpetual Calendar | |
| Hands: | 30 Minute Chronograph Hand at 4:00, Big Date at 12:00, Central 60 Second Chronograph Hand, Central Hour Hand, Central Minute Hand, Day Pointer at 8:00, Day/Night Indicator Pointer at 9:00, Leap Year Pointer at 4:30, Month Pointer at 4:00, Moon Phase Wheel at 6:00, Small Seconds Hand at 8:00 | ||
| Distinguishing Technical Characteristics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Hand-Winding  Clockwise Balance Cock  Variable-Inertia Balance  Swan-Neck Regulator  8-Column Chronograph |
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| Production: – Current | |||||||||||
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
Cal. L952.1 is a hand-winding perpetual calendar movement with chronograph, big date, and moon phase from A. Lange & Söhne.
A. Lange & Söhne Cal. L952.1 Functions
Cal. L952.1 is a complex movement that combines a chronograph and perpetual calendar mechanism with the signature double-wheel big date feature made famous by A. Lange & Söhne in 1994.
- 30 minute chronograph counter and date by pointer at 4:00
- Leap year pointer overlapping at 4:30
- Moon phase window at 6:00
- Running seconds and day by pointer at 8:00
- 24 hour pointer overlapping at 9:00
- Big date at 12:00
A. Lange & Söhne Cal. L952.1 Applications
- A. Lange & Söhne Datograph Perpetual, Ref. 410