Piaget 18K Yellow Gold & Onyx Dress Watch

THE ART OF STONE AND GOLD

In 1963, Piaget began a remarkable chapter in watchmaking history with the introduction of ornamental-stone dials, transforming natural materials into miniature works of art. Throughout the 1970s, the Maison expanded this creative philosophy, combining precious metals, unconventional case shapes, and richly colored stones. Black onyx became one of its most elegant expressions, prized for its deep, uninterrupted color and dramatic contrast against polished yellow gold.

Dating to 1977, Piaget reference 9791 embodies this distinctive era of artistic experimentation. Its architectural octagonal case, crafted in 18-karat yellow gold, frames a polished black onyx dial whose minimalist beauty allows the stone to command attention. Measuring 29 × 32 mm, the watch combines bold geometric design with the refined proportions and jewelry-making expertise that established Piaget as one of the most imaginative Swiss manufactures of the period. Its manually wound mechanical movement reflects the Maison's longstanding tradition of ultra-thin watchmaking.

HISTORICAL & COLLECTIBLE SIGNIFICANCE

Piaget's ornamental-stone watches occupy an important place in vintage collecting, admired for their unconventional design, specialized craftsmanship, and association with the Maison's celebrated creative period of the 1960s and 1970s. Fashioning onyx into a thin, polished watch dial demands considerable precision, as the material must be carefully cut and finished without compromising its integrity. The combination of natural stone, sculptural gold, and traditional mechanical watchmaking makes reference 9791 a compelling expression of Piaget's ability to unite fine horology with the decorative arts. This 1977 example is accompanied by papers.

WATCH DETAILS
Brand: Piaget
Reference: 9791
Year: 1977
Case Material: 18K Yellow Gold
Case Shape: Octagonal
Dial: Black Onyx
Case Dimensions: 29 × 32 mm
Movement Type: Mechanical, Manual Winding
Papers: Included
Original Box: Not Included