A. Lange & Söhne is a German watch manufacturer founded in Glashütte, Saxony, in 1845 by Ferdinand Adolph Lange. Expropriated after the Second World War, it was relaunched in 1990 by his great-grandson Walter Lange and Günter Blümlein, and released its first modern collection in 1994 - including the Lange 1, whose asymmetric dial and outsize date became the brand's signature. Its movements are made in-house from untreated German silver, assembled twice, and finished with a hand-engraved balance cock; the Datograph flyback chronograph and the Zeitwerk jumping numerals are widely considered among the best-executed complications in modern watchmaking.