It is now standard for people to see A. Lange & Sohne items worn on a person's wrist. This is the normal case because A. Lange & Söhne makes high quality and prestige watches. Experts and collectors know that Lange watches have mechanical rather than quartz movements and, with the exception of a very few special edition watches, Lange watch cases are made of yellow gold, rose gold, white gold, or platinum. Also, with the initial Lange movements, they were developed, produced, and assembled by Ferdinand Adolph Lange, the founder of the company in 1845.

Today, in 2017, A. Lange & Sohne is a proud company rich in history and tradition. A. Lange & Sohne watches are known for being intertwined with artistry found in German Saxony heritage and surroundings. Dating back 170 years to its beginnings, the company has been producing arguably the best watches in the world. So, the classic "Lange 1" model now represents the true history of the company.

During WW II, Lange & Sohne Watches almost closed their doors. But, after the fall of the wall and the reuniting of Germany, Walter Lange and a small group of Artisans once again began to create watches (specialty masterpieces).

More Info: en.wikipedia.org