Looking back at 2015, Lange A. LANGE & SÖHNE celebrated the brand founder Ferdinando with the world’s first decimal minute repeater. Adolf. The 200th anniversary of Lange’s birth. In 2016, the brand continued to launch a Datograph Perpetual Tourbillon, which integrates three complex functions of chronograph, perpetual calendar and tourbillon, pushing the development of the series’ functions to another peak in history.
The design inspiration of Datograph Perpetual Tourbillon is inspired by Datograph Up / Down and Datograph Perpetual published by SIHH in 2015. Although the two limelights were temporarily covered by the Zeitwerk Minute Repeater of the year, the exclusive Datograph Up / Down chronograph and perpetual calendar Function, showing a practical and reliable sense of solidity, became a dark horse in the hearts of many watch fans in 2015. In 2016, the brand further promoted these two complex functions, combined with a sophisticated tourbillon device, launched the Datograph Perpetual Tourbillon, which was sold in a limited number of one hundred. It is believed that it will meet the demanding appearance and strength fans.
Datograph Perpetual Tourbillon’s remarkable features can be previewed from three parts of its name. As its name implies, ‘Datograph’ stands for chronograph with column wheel, precise jumping points, flyback function and classic Lange date display. This watch inherits the concept of Lange’s famous Datograph Up / Down function, and successfully dismantles the problem of accurate short timing. ‘Up / Down’ is a standard term of Lange. It is related to the power reserve indication. When the watch is full, ‘Up’ can provide up to 50 hours of power reserve, and the label will tend to ‘AUF’. ‘Down’ when the power is exhausted, it will lean towards ‘AB’. The entire function is complete and intimate, ensuring that the watch retains sufficient power at all times to drive precision components. In addition, the column wheel device can effectively control various timing functions, the jumping integral plate clearly displays the cumulative timing, and the flyback function can measure continuous periods in an instant. Three important innovative technologies are integrated to drive accurate timing.
As for the second word ‘Perpetual’ in the table name, it refers to the perpetual calendar with moon phase display. The Datograph Perpetual Tourbillon perpetual calendar includes Lange’s classic large date and small dial with the day, month, and leap year displays, all jumping in a jump mode, providing accurate reading at any time, and convenient and easy to read. The Lange perpetual calendar has always been accurate and reliable. This watch does not need to be corrected for one day until March 1st of the next century (2100). In terms of moon phase display, it is accurate that the actual position of the moon differs by only one day every 122.6 years. The watch’s three correctors also implement practical principles, which can independently adjust the moon phase and week display, and simultaneously advance the month and leap year display. Assuming that the watch is stopped for several days, the wearer can still quickly adjust it by the pusher located at 10 o’clock and update all the displays at the same time.
As for ‘Toubillon’, the inverse watch, through the sapphire crystal case back and the hollow tourbillon bridge, shows the delicate tourbillon device of Datograph Perpetual Tourbillon. This time A. LANGE & SÖHNE’s reform of the tourbillon was also a smash hit. The traditional Lange Tourbillon balance has a frequency of 21,600 vibrations per hour, although higher vibration frequencies can theoretically improve the accuracy of travel time. However, in the actual operation of mechanical watches, generally speaking, as the tourbillon vibrates more frequently and the balance swings faster, it is easy to lose control when it is unstable, and the friction loss is faster, so that precision cannot be maintained for a long time. It may end up detracting from overall accuracy. After some precise calculations, the brand weighed its weight. In this annual masterpiece, for the first time, the tourbillon balance was changed to 18,000 vibrations per hour (2.5 Hz), reducing the wear on the movement components, and the stop time display was also So accurate to one-fifth of a second, it can be said to kill two birds with one stone. When the crown is pulled up, the patented stop-second device can instantly stop the balance wheel in the tourbillon frame, ensuring that the time of the watch is accurate to the second.
To reconcile the three major functions and converge on a small L952.2 automatic winding movement, it is naturally a big challenge. L952.2 consists of 729 parts, which are carefully modified and assembled by hand. The splint and bridge are made of untreated German watches, while the middle wheel plywood and tourbillon lever are carved by hand, which is delicate and moist The exquisite workmanship is revealed from the transparent bottom cover, revealing the highly demanding and self-confident of Lange’s senior watchmakers, while interpreting the brand’s low-key luxury art style, which is dizzying.
Although Datograph Perpetual Tourbillon is commanded by functions, Lange, who has always been unscrupulous in watch design and workmanship, naturally hopes that this 2016 masterpiece will be perfect. This time the watch is dominated by black tones, the face plate is made of black solid silver, and the 41.5mm platinum 950 case is meticulous in workmanship, which will show the style, while also containing the sporty atmosphere of the chronograph. The faceplate layout also maintains the German classic and simple style. The two time dials are combined with the date and week display to form a ‘binocular’ design, which is clear and clear. At 12 o’clock on the faceplate, the soul of the Lange watch is equipped with a large date display, while at 6 o’clock, it is equipped with moon phase and day and night display devices. When the night is low, dark blue moon phases are emerging, quietly Cool black smeared a bit of blue, proclaiming the style of its masters in the orthodox German watch industry.
Datograph Perpetual Tourbillon
Platinum 950 material / L952.2 manual winding movement / hour, minute, small second, big date, day of the week, month, leap year display / stop-second tourbillon device / jump-minute flyback chronograph function / lunar phase display / Day and night display / Sapphire crystal, transparent back cover / diameter 41.5mm / limited to 100 pieces only