In the Second World War, Germany split East and West Germany. The Lange family business was confiscated and confiscated by the East German government, which interrupted the legendary history of the Lange brand for 40 years. At the 2012 SIHH Geneva Watch & Clock Fair, Lange introduced a watch with the most complicated functions. It is a LANGE 1 TOURBILLON PERPETUAL CALENDAR watch with a tourbillon, perpetual calendar, and month functions.
The white dial inherits the consistent configuration style of Lange Lang 1. Just looking at the dial layout that is well-formed and easy to read, you can know the complexity of the development of this watch and the innovative spirit of watchmakers. As the tenth member of the famous Lange watch series, it perfectly embodies the essence of the new mechanical watch design. The designer of the watch house specially produced the explanation of the dial of this watch, as shown below:
The dial displays the Lange’s classic large calendar double window from 10 o’clock to 11 o’clock. The large date double window is undoubtedly Lange’s most famous patent. It uses white on a black background and uses 18K rose gold as a frame. Perfectly interpreted in the collection.
From 8 o’clock to 10 o’clock on the dial, the original power reserve display was replaced by the day of the week display. This watch is Lange’s first tourbillon self-winding watch. Any slight movement of the wrist will be converted into winding energy, providing a power reserve of up to 50 hours for watch operation.
The small seconds and moon phases are displayed at 7 to 8 o’clock on the dial. Because this watch is equipped with perpetual calendar complex functions, it is necessary to pay special attention to the operation of this moon phase function can be accurate to 122 days before a day of error.
To make the dial of this watch to accommodate the calendar display, the designer of the Lange movement invented the first rotating perpetual calendar month display ring in the history of the watch. There are notches with different depths under the month display ring, which correspond to the number of days in each month. This unique design has been patented by Lange.
The outer ring of this watch is equipped with Lange’s newly developed rotating flashing month display ring, which displays the month of the month at six o’clock, the most clever is above the 6 o’clock position, and the leap year display window is inside the small triangle frame.
The crown is located at the 3 o’clock position of the case. When this crown is pulled out, Lange’s patented stop-second device can immediately stop the balance wheel in the tourbillon frame. The watch time can be easily set and can be calibrated to seconds to ensure each The item calendars display accurate or precise operation separately or simultaneously.
The large eccentric faceplate at 3 o’clock is the most basic time-division function. A round blue ring frame under the hour-division plate also has a day and night display function.
All display functions of the perpetual calendar ─ large calendar, retrograde week display, month display ring, leap year window, moon phase display and other functions are in the jump mode, you can enjoy the date, week and month at midnight on the last day of each month Rings switch instantly at the same time. In addition, I am particularly proud that this watch does not need to be returned to the factory for adjustment in 2100, it only needs to be adjusted for one day on March 1, 2100.
We have never found the tourbillon on the dial. The original Lange designer did not design the tourbillon to open the window in order to maintain the consistent charm of the LANGE 1, so this is the most low-key tourbillon watch ever made. Through the sapphire crystal case back, you can see the sophisticated mechanical structure and tourbillon frame.
This movement consists of 624 parts and uses 68 jewel bearings. The tourbillon gemstone bearing is made of diamond material, which echoes the Lange high-quality bone pocket watch of category 1A.
The tourbillon mechanism consists of 69 parts and weighs only 0.5 grams. The vibration frequency is 21600vph / 3Hz. The movement has a diameter of 34.1 mm and a thickness of 7.8 mm. The carefully crafted movement components, the hand-carved tourbillon, the intermediate wheel plywood, and the four gold sleeves fixed to the plate in blue steel all reflect the outstanding craftsmanship of this movement.
The most complex member of the LANGE 1 series so far, with a diameter of 41.9 mm and a platinum case, the platinum version is equipped with a black alligator strap and a folding buckle of the same material as the case.
For detailed parameters of the platinum watch, please click here: LANGE 1 TOURBILLON PERPETUAL CALENDAR series 720.025 watch
Rose gold watch detailed parameters please click: Lange LANGE 1 TOURBILLON PERPETUAL CALENDAR series 720.032 watch