![Private Label Trade Names on American Pocket Watches: The Non-Magnetic Watch Company: Part 7: Paillard’s Patents: Palladium Hairspring img](https://blog.pocketwatchdatabase.com/wp-content/uploads/2021/11/Paillard-EnglishPatent-6367-May111886.jpg)
Pictured: C.A. Paillard’s Palladium Hairspring English Patent #6367. In the late 1870s, after a decade of experimentation, Charles-Auguste Paillard successfully developed a palladium alloy that was immune to corrosion, featured elasticity similar to steel, and did not significantly expand or contract when introduced to temperature...