The Evolution of Timekeeping: Valjoux7750 to ETA7750 Movements
Introduction
The Valjoux7750, now known as the ETA7750[
The Evolution of Timekeeping: Valjoux7750 to ETA7750 Movements[/size]
Introduction
The Valjoux7750, now known as the ETA7750, marks a revolutionary chapter in the saga of Swiss watchmaking. Developed in the 1970s by the Valjoux movement manufacturing company, this movement redefined automatic chronograph movements with its ingenious lever system, replacing the traditional column wheel and significantly reducing manufacturing costs while enhancing stability.
The Revolutionary Design
Described as the transition from revolver to automatic pistol in the chronograph world, the Valjoux7750’s design simplified the complex mechanism of timing, making it more accessible and reliable. Its appearance heralded a new era for chronographs, combining affordability with precision.
Integration into ETA
The subsequent integration of Valjoux into the ETA Movements Company did little to diminish the significance of the 7750, which continues to be the backbone of chronograph movements in watches priced under $50,000. Despite criticisms of its thickness and mass production, the technical performance of the 7750 movement remains beyond reproach.
A Milestone in Space
The movement’s legacy extended beyond terrestrial bounds when, in 2003, China embarked on manned space missions. Although the first Chinese astronaut, Yang Liwei, wore a quartz movement watch, by the time of the Shenzhou 7 mission in 2008, the task of developing a mechanical movement for space missions was assigned to the Shanghai Watch Factory. By meticulously dissecting and mapping an ETA7750 movement, they developed what came to be known as the Shanghai 7750 movement. This movement powered the Feiyada astronaut watches for subsequent missions, including those worn by astronauts on the Shenzhou missions and pilots of the Liaoning aircraft carrier’s fighter jets.
Conclusion
From the workbenches of Swiss innovators to the wrists of astronauts, the ETA7750 movement embodies the spirit of horological excellence. It remains a pivotal element in the realm of chronographs, serving as a testament to the enduring legacy of Swiss precision and ingenuity in watchmaking.
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