A. Lange & Söhne is a German watch brand known for the high quality of its watches. The brand was founded in 1845 by Ferdinand Adolph Lange in Glashütte, Germany. Lange was a pioneer in the use of accurate timepieces in pocket watches, and his watches were very popular among the wealthy citizens of the town.

After the Second World War, however, the brand was shut down by the communist government of East Germany. The brand was not revived until 1990, after the fall of the Berlin Wall, by Walter Lange, the grandson of Ferdinand Adolph Lange.

Vintage A. Lange & Söhne watches from before 1999 are highly sought after by collectors due to their unique designs and exceptional quality. Some of the most popular vintage models from the brand are:

• The Lange 1: This was the first watch that A. Lange & Söhne launched after its relaunch in 1990. The watch features a unique design with two time zones and a large date display.
• The Lange Zeitwerk: This watch features a digital movement with an innovative mainspring movement that indicates the time using discs instead of hands.
• The Tourbillon “Pour le Mérite”: This is a very exclusive watch that is equipped with a tourbillon, a mechanism that improves the accuracy of the watch by compensating for the inaccuracies caused by gravity.

In general, vintage A. Lange & Söhne watches are highly sought after for their impeccable quality and unique designs. They are a valuable addition to any watch collection.