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Piaget Tonneau 9251 Onyx 1970s

€3.900
Only 1 available

Free insured express delivery worldwide

Trusted by 2,000+ collectors worldwide

GOLDAMMER authenticity guarantee

1-year mechanical warranty

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Piaget 9251 Tonneau Onyx – Slim Sophistication in Gold

Stone dial elegance meets mechanical finesse.

At just 2mm thin, Piaget’s legendary Caliber 9P changed watchmaking forever. It allowed for bolder case designs and the integration of hard stone dials — like the flawless onyx dial showcased here.

This rare 1970s Piaget 9251 comes in an elegant 18k yellow gold case with soft tonneau contours — a unique silhouette that sets it apart from the brand’s classic Ellipse designs. The deep-black dial is uninterrupted by markers, emphasizing the minimalist purity of the piece.

Adding to its originality, this example is still fitted with its original Piaget black leather strap and 18k gold buckle — a rare find in this condition.

Powered by the hand-wound Cal. 9P and professionally serviced, this Piaget wears like sculpture: thin, refined, and quietly luxurious.

- wrist size in our picture is 18cm circumference -

DIAL:

  • original never touched Onyx dial in flawless condition
  • original hands & crown

STRAP & BUCKLE:

  • original Piaget black leather strap fitting up to 20 cm wrist size / 1.5 mm thick
  • original 18k yellow gold Piaget buckle

CASE:

  • great overall condition, showing minor traces of use
  • 3-body 18k yellow gold case with screw-down case back
  • 26 mm (without crown) / 36 mm (lug-to-lug) / 17 mm (between lugs) / 4.8 mm thick
  • year: 1970s
  • reference.: 9251
  • total weight: 31 g

MOVEMENT:

  • Piaget Cal. 9P - manual wind
  • 17 jewels, 18000 A/h, 52 hours power reserve
  • professionally serviced 08/2025
  • +4 sec/d / 270°

BOX & PAPERS:

  • GOLDAMMER certificate of authenticity & service documentation card
  • GOLDAMMER box

GOLDAMMER REFERENCE: #1146

Piaget

Elegance. That’s the word that echoes through every creation by Piaget. Since its founding in 1874 in the quiet Swiss village of La Côte-aux-Fées, Piaget has always done things with a sense of grace and refinement that feels almost effortless — yet is anything but.

Originally a specialist in ultra-precise movements, the maison rose to fame not only for its engineering, but for making the thinnest mechanical calibers the world had ever seen. What began as a pursuit of slimness became a philosophy — watches that disappear on the wrist, but leave a lasting impression.

In the golden decades of the 50s, 60s, and 70s, Piaget blossomed into a symbol of bold creativity and jet-set sophistication. This was the era of malachite and lapis lazuli dials, intricate gold bracelets, and case shapes that blurred the line between jewelry and timekeeping. Their vintage watches from this time remain among the most artistic and distinctive ever made — unapologetically elegant, wildly imaginative, and deeply collectible.

To own a Piaget vintage watch is to wear more than time. It’s to carry a piece of mid-century glamour, captured in solid gold and stone. It’s to appreciate the rare intersection of haute horlogerie and haute couture.

But beneath the beauty lies brilliance. Every Piaget movement, no matter how thin, is crafted entirely in-house — a testament to their quiet mastery. No shortcuts. No compromises.

A Piaget is for the collector who moves with subtle confidence. Someone who understands that real luxury is never loud — it whispers in gold tones and polished stone, in hand-finishing and harmony.

It’s a vintage watch not just to wear, but to be seen in. Timeless, bold, and eternally refined.

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