In addition to well-known design outside , A. Lange & Söhne logo also represents the imaginative mechanical technology . This trait penetration in 1815 among all series watches , particularly the launch of this year 's 1815 UP / DOWN. The name comes from the account at this time Ferdinand Adolph Lange 's birth year , but the extraordinary tradition began in the early 19th century and contemporary watchmaking mutual integration of knowledge , achievement of perfect fine art of watchmaking .
Just through the sapphire crystal case back, gently glance watch factory -made L051.2 -type movement , is enough to know everything. In addition to 3/ 4 plywood , the hand-carved balance cock , classic screw balance wheel , gold sleeve blue steel screws and other details , also is the best evidence. Decorated with sun pattern on the chain gear , reminiscent of former senior modification perfect pocket watch movement .
Placed on the wheel plywood sculpture as fingerprints, so each chop Lange watch unique. Sculptor in small parts started to draw floral patterns. Micrometer screw with lateral gooseneck leverage is another typical feature of the movement . This device can precisely adjust the amplitude of the watch .