1795 Swiss watch master Louis - Abraham - Breguet invention tourbillon. The background of the invention is: because at that time, the pocket watch was also worn, the pocket watch lay flat on the desktop when assembled, but most of the pocketbooks in actual use are perpendicular to the ground. So no matter how accurate pocket watch adjustment, in actual use because of the role of gravity have become less accurate. The genius of Breguet thought: If I make a small cage, the heart of the mechanical watch - escapement mounted in the cage, let the cage kept rotating, you should be able to offset the impact of gravity on the clock. This is the simple process invented by Tourbillon. Since the 1980s, the traditional Swiss mechanical watch revived after the "Quartet Revolution" has paid tribute to history and began to experiment with the success of transplanting the tourbillon on a pocket watch into a smaller watch. Because the watch on the tourbillon weighs only 0.3 grams, but need more than 80 parts, very difficult to process. Therefore, the tourbillon watch is very expensive, tourbillon function has also become a pearl on the watch crown. In 1994 Hong Kong Chinese watchmaker Juggernaut made the first Chinese tourbillon watch. 1995 Beijing Watch Factory Xu Yaonan master produced the first tourbillon watch in mainland China. As a master of the tourbillon its framework resembles a swallow, named "China Lingyan." This is the origin of the Beijing Tourbillon flywheel.
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