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Brand: | Audemars Piguet | 
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|---|---|---|---|
| Family: |
Unknown
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| Height: | |||
| Jewels: | 59 | ||
| Reserve: | 50 hours | ||
| Frequency: | 21600 A/h | ||
| Winding: | Automatic, Bi-Directional Automatic Winding, Central Rotor Automatic Winding | ||
| Diameter: | 29.92 mm (13.25 ligne) | ||
| © Audemars Piguet | Complications: | 2-Button, Cam Switching Chronograph, Chronograph, Date, Hacking Seconds | |
| Hands: | 12 Hour Chronograph Hand at 6:00, 30 Minute Chronograph Hand at 9:00, Central 60 Second Chronograph Hand, Central Hour Hand, Central Minute Hand, Date Window at 3:00, Small Seconds Hand at 12:00 | ||
| Distinguishing Technical Characteristics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Central-Rotor Automatic  Clockwise Balance Cock  Variable-Inertia Balance  Screwed Mobile Stud Regulator |
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| Production: – Current | |||||||||||
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
Cal. 3126 is an automatic chronograph movement from Audemars Piguet often used with modules. It measures 29.92 mm (13.25 ligne) in diameter and operates at 21,600 A/h. It appears to be based on the Valjoux 7750.
- Audemars Piguet Royal Oak Offshore 44, Ref. 26400, 26401, 26405, 26408, 26411, 26412, 26415, 26416 (Cal. 3126/3840)
- Audemars Piguet Royal Oak Offshore 42, Ref. 26237, 26470, 26471, 26473 (Cal. 3126/3840)