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2825 Sand Hill Rd
Menlo Park, CA, 94025

(650) 292 0612

Stephen Silver is renowned for our extraordinary ability to procure, design and handcraft the world's finest jewelry and gemstones.

The Stephen Silver Fine Jewelry Estate Collection includes some of the finest pieces from the Edwardian, Victorian, Art Deco, Art Nouveau, and Retro eras. Signed and period pieces are the company's specialty; many of which are from prestigious jewelry houses such as Cartier, Van Cleef & Arpels, Bulgari, Tiffany & Co., and Harry Winston.

The Stephen Silver Fine Jewelry Signature Collection exemplifies modern day luxury combined with old world elegance to produce true works of art. Exquisitely handcrafted in platinum and 18-karat gold, using only the very finest diamonds and colored gemstones, our Signature Collection is exceptional in quality and extraordinary in style.

What It Means When Your Watch Has the Hallmark of Geneva, or Geneva Seal


What It Means When Your Watch Has the Hallmark of Geneva, or Geneva Seal

Howard Cohen

Not all luxury watches are created equal. A few select brands submit their watches for the Geneva Seal, the ultimate certification of quality in fine watchmaking. Here is a guide to what it means when a watch is stamped with the Hallmark of Geneva.


The Geneva Seal — a.k.a. Poincon de Genève, Geneva Hallmark and Hallmark of Geneva — is a quality seal awarded to watches submitted for inspection to an independent bureau operating under state control in Geneva. The Poincon de Genève is currently the only watchmaking label to benefit from State guarantee, and that effort is fulfilled by TimeLab – the Geneva Laboratory of Horology and Micro-engineering.

To receive the seal, the watch movement must meet 12 criteria relating to the quality of its finishing and materials. The certificate is only awarded to timepieces with remarkable decorative finishes, qualifying them as works of art. Additionally, the certificate guarantees the watch is of top-quality craftsmanship and chronometrically precise. The finished watch is also tested for water resistance, power reserve and more.

Most importantly, to be acknowledged by the Canton of Geneva and therefore even be eligible to be inspected for the Seal, the watch – and all of its parts – must be manufactured in Geneva. If a watch is diamond set, even the diamond setting must be done in Geneva. The seal (with the Geneva Coat of arms on it) is stamped on the watch movement when approved.


Earning the Poincon de Genève is no easy feat — especially in a watch with hundreds of components, as each and every part (from wheel trains to the adjustment system, balance wheel, spring, and all shaped parts, including screws and pins) must be finely decorated and finished to flawless perfection. Screws and pins must have polished chamfers and straight-grained sides. Currently just a small number of brands submit their watches for the Geneva Seal. Since September 2013, any watch issued the Geneva Seal receives a unique key or code that a purchaser can use to check the authenticity of the certification.