| Brand: | Frédéric Piguet | 
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| Family: |
Unknown
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| Height: | 3.25 mm | ||
| Jewels: | 19 | ||
| Reserve: | hours | ||
| Frequency: | 21,600 A/h | ||
| Winding: | Automatic, Central Rotor Automatic Winding, Clockwise Automatic Winding, Uni-Directional Automatic Winding | ||
| Diameter: | 20.40 mm (9 ligne) | ||
| Complications: | Date | ||
| Hands: | Central Hour Hand, Central Minute Hand, Central Seconds Hand, Date Window at 3:00 | ||
| Distinguishing Technical Characteristics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Ultra-Thin Central-Rotor Automatic  Central-Rotor Automatic  Clockwise Balance Cock |
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| Production: – | |||||||||||
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
Cal. FP 951 (also known as Cal. FP 9.51) is a compact and ultra-thin automatic movement from Frédéric Piguet. It measures 20.40 mm in diameter and just 3.25 mm in height.
It is part of a family of related movements: FP 951 (with date), FP 953 (no date), FP 9511 (larger 10.5 ligne size with date), FP 9531 (10.5 ligne, no date), FP 9516 (10.5 ligne with date and 24 hour hand). The uni-directional automatic winding runs clockwise.