At the 2011 Geneva Haute Horlogerie Show, Lange launched the fourth watch with the title ‘Pour le Mérite’ since 1994. This watch is equipped with a rose gold case with a diameter of 41.9 mm. The dial is composed of three parts of white enamel dial, equipped with an elongated black Roman numeral hour scale, and small red Arabic numerals indicate 15, 30, 45, and 60 minutes, making it the perfect stage for classic hands.
This watch is a tourbillon three-hand watch. The hour, minute and second hands are located at the lower right, upper and lower left of the dial, respectively, and have a hollow design at the second hand.
The dial of the second hand is provided with a circular notch, which is penetrated by the minute scale above and the embedded tourbillon bridge plate, and the tourbillon frame is now in it.
However, the details of the tourbillon can only be fully displayed between 12 o’clock and 6 o’clock. Once it is pointed at 6 o’clock, the dial engraved with Roman numerals VIII, IX and X instantly turns into the display window to complete the hourly operation.
At 12 o’clock, the hour hand dial area disappeared quickly, and in the next 6 hours, with the tourbillon rotating and reciprocating at the same time, and present again. This operation is driven by a precise switching device to ensure that the dial area rotates 90 degrees every 6 hours, and the time display is equally clear regardless of day and night.
In addition, the watch’s patented stop-second mechanism allows the time to be set to the second. With the patented stop-second device, the tourbillon can be stopped by pulling the crown, and the watch can be adjusted with the accuracy of the second. Time is displayed.
One thing to be proud of is that the master of Lange watchmaking pioneered and successfully put the sesame chain drive system in the case of a small watch. In this watch’s sesame chain drive system, the mainspring’s power is 636. The sesame chain consisting of two parts is transmitted to the travelling wheel train. To house such a complex mechanical device in a watch, extraordinary smart technology must be available. Therefore, it is not difficult to understand that sesame chain power transmission is more rare than tourbillons.
One end of the sesame chain is connected to the barrel, and the other end is connected to the pagoda wheel. When the main barrel is released, the sesame chain surrounds the main barrel and turns away from the pagoda wheel. When the mainspring is fully wound, its power is the greatest. At this time, the sesame chain will move to the smaller circle of the pagoda wheel, and the lever here is relatively short. When the tension of the mainspring is gradually lost, the sesame chain will tighten the larger circle with a longer lever. Therefore, regardless of the winding condition of the mainspring, the torque transmitted to the escape wheel remains unchanged, thereby improving accuracy.
RICHARD LANGE TOURBILLON ‘Pour le Mérite’ equipped with 6 vibrations per second, the classic screw balance and Lange’s own recalculation balance spring is equipped with Lange’s homemade L072.1, which is newly handmade by Lange’s highest standards Hand-wound movement. The diameter of the movement is 33.6 mm. The case diameter is 41.9 mm and the material is available in platinum or rose gold. The platinum version is limited to 100 pieces, making it the perfect choice for watch collectors.
Watch detailed parameters please click: Lange RICHARD LANGE TOURBILLON ‘Pour le Mérite’ watch series 760.032 18K rose gold watch