Joseph Rochet was a French technician and entrepreneur whose legacy is defined by the co-founding of the ZRC watch brand, a company that evolved from a specialized manufacturer of watch accessories into a respected name in professional diving instruments. Born in the late 19th century, Rochet built a career based on technical innovation and precision engineering, establishing a family business that has maintained its independence for over a century.
In 1904, Joseph Rochet partnered with Edmond Zuccolo, a workshop manager, to establish Zuccolo Rochet (ZRC) in Geneva, Switzerland. Initially, the firm did not manufacture complete timepieces but specialized in the production of high-quality chains for pocket watches. Rochet’s technical expertise was central to the company’s early success, as the workshop focused on mastering metalworking and small-scale component manufacturing.
A pivotal moment in Rochet’s career occurred in 1917 when the firm was awarded the Prix de l’Industrie Nouvelle de Genève (Geneva Prize for New Industry). This honor was granted for the development of the first-ever extendable metal watch bracelet, an innovation that addressed the emerging trend of wearing timepieces on the wrist rather than in a pocket. Under Rochet’s guidance, ZRC became a world leader in the production of these bracelets, supplying major watch houses and establishing the brand’s reputation for functional innovation.
Rochet’s approach to the industry was characterized by a focus on industrial growth and specialized manufacturing. The company expanded its expertise into steel turning and the production of waterproof cases, laying the groundwork for the brand’s eventual entry into the watchmaking market. Even as the company diversified, Rochet ensured that the core values of technical precision and durability remained at the forefront of their operations.
The family-oriented structure of the business was a defining feature of Rochet’s professional life. He established a lineage of leadership that allowed the company to navigate the economic shifts of the 20th century. His descendants, including his grandson Louis Brunet and great-grandsons Georges and Charles Brunet, would later lead the company through its most famous era: the development of the Grands Fonds 300 diving watch for the French Navy in the 1960s.
Joseph Rochet’s biography reflects the transition of horological suppliers into recognized brands. By focusing on the “architecture” of the watch—the bracelets and cases—he provided the technical foundation that allowed ZRC to eventually produce some of the most distinctive tool watches in Swiss and French history. His commitment to innovation is still visible in the brand’s modern identity, which continues to utilize unique technical solutions like the 6 o’clock crown position.
Today, Joseph Rochet is remembered as a foundational figure in the Geneva watchmaking community. His ability to identify and solve technical challenges through industrial manufacturing helped create a brand that remains a symbol of robustness and specialized engineering. The ZRC name, derived from the initials of its founders, stands as a testament to Rochet’s enduring influence on the world of professional horology.