This is the only way to ensure that the Replica A Lange&Sohne watches perpetual calendar will actually work in perpetuity.The problem with this machine is, however, that the stress caused by finger pressure is much greater than that of a bolt, because a finger builds up the force slowly until it overcomes the resistance of the button, then pushing the button against the base with a lot of excess energy.Schlencker simulated this by mounting the bolts on springs and placing silicone caps on the ends.In addition, he created a device that can wind up the movement automatically during the tests, so that he doesn't have to Replica A Lange&Sohne watches interrupt the torture on weekends. Schlencker also procured a climatic chamber that is able to replicate all climatic zones around the world from minus 20 degrees of dry cold to 80 degrees of humid heat.It tests the temperature resistance of the movement.Schlencker also bought a "torque" testing machine" to measure the power reaching a gearwheel and the percentage of power used by the wheel itself.The less energy lost, the better it is for the durability of a movement.For a well-adjusted wheel, the power efficiency is estimated at 93 percent.
It was the job he had been waiting for all his life.For Lange, it was about establishing the strictest quality controls in the entire fine watch industry.A crash test laboratory was to be created according to the example of the automotive industry, which would also be a place where technical treasures would receive their ultimate fine-tuning.Basically, the test lab should not be a place of destruction, but one of research.Schlencker was able to buy some of the Replica A Lange&Sohne watches necessary equipment and developed the other tests himself.The "shaker test", for example.Essentially, it is a wooden box rotating in all possible directions, back and forth, diagonally and with loops, and all this at an irregular speed.Inside, a watch bangs against the wall four times per second, and after 24 hours, the piece looks as if its wearer had just climbed the Nanga Parbat."The shaker simulates five years of mechanical stress caused by an athletic wearer," Schlencker says.Following this ordeal, all 556 parts of the DATOGRAPH PERPETUAL still have to be firmly in place and work flawlessly. Then he developed a "pusher tester", which he modified to test the watch's long-term stability with a realistic simulation.From a distance, it looks like a huge spider.On closer view, it consists of many little bolts pressing the pushers of the DATOGRAPH PERPETUAL again and again; after 50,000 times each on start, stop, reset and flyback, the buttons Replica A Lange&Sohne watches must work as precisely and with the same resistance as they did on the first day.The main push piece, which advances all calendar displays, including the outsize date, collectively by one day, is also pushed 50,000 times during the development stage, advancing the watch more than a hundred years.