Inside the watches them selves, Swiss watches often use rhodium-plated brass for their movements, when German watches favor German silver, and that is an alloy of copper and nickel. Robert Mühle opened the doorways of his namesake Glashütte-based manufacturer in 1869, even though it specialised in making exact measuring devices https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/