Hodinkee goes behind the scenes of the Glashütte Germany-based watchmaker A. Lange & Söhne. They get an inside look at what it takes to make a high-end watch today—from the computer-guided machines that make precision cuts in the metal to the teams of craftsmen who toil over the details and decoration to the hand-coiling of hairsprings. "It's a painstaking process, with some models taking months to complete."