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Brand: | Audemars Piguet | 
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|---|---|---|---|
| Family: | |||
| Height: | 3.05 mm | ||
| Jewels: | 36 | ||
| Reserve: | 40 hours | ||
| Frequency: | 21600 A/h | ||
| Winding: | Automatic, Bi-Directional Automatic Winding, Central Rotor Automatic Winding | ||
| Diameter: | 28.40 mm | ||
| © Audemars Piguet | Complications: | Date | |
| Hands: | Central Hour Hand, Central Minute Hand, Date Window at 3:00 | ||
| Distinguishing Technical Characteristics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Ultra-Thin Central-Rotor Automatic  Central-Rotor Automatic  Counter-Clockwise Balance Cock  Gyromax Balance |
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| Production: 1970 – Current | |||||||||||
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
Introduced in 1970, Cal. 2121 was the thinnest automatic movement with a date complication. Measuring just 3.05 mm thick, Audemars Piguet based this on their existing Cal. 2120, which was designed by Jaeger-LeCoultre. It remains in production as of 2019.
- 1972-1990 Audemars Piguet Royal Oak “Jumbo” Extra-Thin, Ref. 5402
- 1992-2000 Audemars Piguet Royal Oak “Jubilee” Extra-Thin, Ref. 14802
- 1990-1998 Audemars Piguet Royal Oak “Jumbo” Extra-Thin, Ref. 15802
- Audemars Piguet Royal Oak “Jumbo” Extra-Thin, Ref. 15154
- 2012-present Audemars Piguet Royal Oak “Jumbo” Extra-Thin, Ref. 15201, 15202, 15205
