Pictured: “Watch Bridge” U.S. Patent #D18722 In a move that was rather uncommon for watch manufacturers at the time, the Non-Magnetic Watch Company of America applied for a design patent.
Pictured: Ajax Insulator with Original Box [Images Courtesy of eBay Seller baubles-and-buttons] The anti-magnetic Ajax Insulators sold by the Newark Watch Case Company typically featured a glossy black exterior and.
Pictured: U.S. Patent #384,731 Charles-Auguste Paillard received six patents in the United States for his innovative palladium alloys used in watchmaking. Paillard’s alloys were immune to corrosion, did not dilate.
Pictured: Paillard’s Palladium Balance and Hairspring Charles-Auguste Paillard was granted a patent in the United States for his palladium alloy compensation balance on March 8, 1887. The remaining patents issued.
Pictured: C.A. Paillard’s Palladium Balance Abstract of English Patent #8730. While the most delicate part of a watch to be significantly affected by magnetism and corrosion is the hairspring, the.
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.