Audemars Piguet
Royal Oak 5402 A-series (1972)
Royal Oak 5402 A-series (1972)
From Gérald Genta's diver’s-helmet memory to eight fixed hexagonal screws, the 1972 Royal Oak’s shape was born from engineering, material and light—not just a geometric sketch. We trace the 5402 and compare four 2026 descendants.

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Specifications
| Variant | Royal Oak 5402 A-series (1972) |
|---|---|
| Style | sport |
Omitted specifications have not been confirmed. From published article 2026-10-15. Original source ↗
Read the stories
Why the Royal Oak Is an Octagon: The One-Night Design That Changed Watchmaking ↗