Lange is among the very few still existing genuine manufacturers of mechanical movements. This small circle of specialists includes only those watchmaking companies that perform most of the value-adding work in-house. At the Lange manufactory, many parts are produced with latest-generation precision machines. But no machine and no computer in the world can replace the steady hand and the trained eye of the master. Loving attention to detail is another facet that can never be automated. And so, the work involved in manually finishing the countless parts of a movement - finishing them to perfection - constitutes value addition par excellence.