Why this one
The case for this one.
- The anniversary chronograph with the 50-years rotor visible through the caseback.
- Calibre 4401: integrated flyback, no modules, no compromises.
- Blue Grande Tapisserie under anniversary-only finishing.
For the Royal Oak’s fiftieth year, Audemars Piguet fitted the Selfwinding Chronograph with the in-house calibre 4401 and a dedicated anniversary rotor. It is the reference that collectors of the modern era will point back to. Excellent throughout, with box and papers.