A Measure of Time
The story of Henri Grandjean & Cie begins in the canton of Neuchâtel, where the pursuit of precision shaped generations of watchmakers and laid the foundations of Swiss chronometry.
The First Workshop
David-Henri Grandjean established his first workshop in La Chaux-de-Fonds. A few years later, he relocated his activity to Le Locle, at the heart of Swiss watchmaking.
Rio de Janeiro Branch
First documented mention of a branch of David-Henri Grandjean & Fils in Rio de Janeiro. Early experiments with chrysolite for jeweled train holes and anchor pallets.
A Magician Watch for a King
A magician watch was presented to Frederick William IV of Prussia, marking an early reach beyond Switzerland.
Chronometer No. 1
Henri and David-Henri completed their first marine chronometer, sold in Brazil—marking their entry into the exacting discipline of precision timekeeping.
Awarded in London
Grandjean pocket chronometers were awarded at the Great Exhibition in London, followed by further distinctions in the decades that followed.
The Neuchâtel Observatory
The Neuchâtel Cantonal Observatory was founded, with the support of industrial figures including Henri Grandjean, reinforcing the formal link between scientific measurement and watchmaking.
Henri Grandjean & Cie
Henri Grandjean founded Henri Grandjean & Cie alongside partners including his nephew Henri Grandjean and Auguste Rossel.
60 Calibres Catalogued
French and English catalogues listed more than sixty calibres, including chronometers and complicated chronographs.
Trademark Protection
Henri Grandjean registered trademarks at the court of Le Locle and entered a new phase of the company alongside his niece, Oline Rossel.
A Passing of the Torch
Following the death of Henri Grandjean, the company was entrusted to Oline Rossel, ensuring the continuity of its standards and direction.
Rossel & Fils
Henri Grandjean & Cie adopted the name Rossel & Fils.
Bankruptcy and Reorganisation
Following bankruptcy in 1906, activity resumed in 1912 under the name Société Anonyme de la Fabrique des Montres Henry Grandjean & Cie.
A New Owner
The company was acquired by Paul Cattin, founder of Oris and Moderna.
Grandjean & Cie
A family-run company specialising in watch cases and engraving, extending Grandjean expertise within the watchmaking industry.
Henri Grandjean & Cie continues in the same spirit that defined its founders— faithful to its origins, yet resolutely modern in its pursuit of excellence.