LANGE 1 is renowned for its asymmetrical dial structure and striking large calendar display inspired by the five-minute digital clock in Semperoper Dresden, Dresden. For 175 years, the digital clock has been an important symbol of this world famous opera house. Classic watches lead the revolution in the world: LANGE 1 on a five-minute digital clock painting Something classic and timeless, timeless, even after it has been published for 175 years, experienced numerous hardships. . The 5-minute digital clock hanging above the stage in Semper's opera house is a perfect example. This clock has dual windows, chic frame. The left window shows the hour in Roman numerals, the right window shows the minutes in Arabic numerals and is separated by five minutes. Every night, viewers wait silently for minutes to jump from "55" to the blank because the show always starts at the punctuality. When the Semper Opera House was completed in 1841, this technically superior digital clock has caused a stir. Its inventor, Johann Christian Friedrich Gutkaes, thus became the court watchmaker. With his apprentice Ferdinand Adolph Lange, Gutkiss was able to add two counter-rotating gears to the huge tower clockwork and hang it on the stage 20 meters above the top. Only 28 years later, the clock, together with the opera house, was in a fire. The rebuilt Opera House was completed in 1878 and Gudgeith's former apprentice Ludwig Teubner, based on the original model, created a brand new stage clock. Semper Opera House was again destroyed in World War II. As the new building opens for the third time in 1985, this classic dual-window clock is still hanging right above the stage and continues to show viewers time. Launched in 1994, LANGE 1 has its big calendar showing that the five-minute digital clock's original ingenuity was brought to a new era. Lange digital clocks exquisite design show on the watch, to pay tribute to the people. Big calendar shows the size of five times larger than the traditional design, more legible. Like the five-minute digital clock, the large calendar has dual windows and the gears are replaced by a one-digit ring from "0" to "9" and a cross ten from "1" to "3" plus a blank Bit digital disk. On the 31st of the month, go to the 1st of next month, the cross ten digit dial will advance to a grid to a blank position, and a digit ring will stay in place all day, which is a master watchmaker Technical challenge The watch has buttons at 10 o'clock to quickly correct the date displayed on the large calendar. In 2015, Lange introduced the new L121.1 movement made by the watch factory and wrote a new page for the LANGE 1 success story of 20 consecutive years. Lange superior watchmaking technology in the instantaneous display of large calendar display vividly revealed. In addition to the watch has 18K rose gold, 18K gold and 950 platinum watch models are also available with a luminous pointer and the scale of the white 18K gold models to choose from.