German silver is an alloy made up of Copper, nickel and Zinc. Most high-end watches are made with this alloy. Even though the namesake suggests that there is silver, in reality, there is actually none contained. The school teaches restoration and often, some of the movements we get are more than 50 years old, so basically, we can't just call the watch company up to order spare parts like we do with ETA movements. What do we do ? We build them from scratch ! And german silver and brass are the usual suspects !
For more information about German, go and read it in Wikipedia ! Of course ! The link is here.
Brass on the left and German Silver on the right.
German silver on the right. Its silvery appearance caused the metal to be called German silver even though there is no silver present in the alloy at all.