Platinum materials / L034.1 movement hand-winding movement / hours, minutes, small seconds, large date display / storage of 31 days / Power Store display / watch diameter 46mm / sapphire crystal, transparent case back / Reference Price: ECU 135,000
Long continuous operation, no watches can match his Lange new manual-winding watch can provide a power reserve of one month, so named for the LANGE 31 watch. Another new device is the constant force escapement. This system ensures that the driving force can be swatch during the entire 31 days on average to pass delivery. Langer also cited in this precious watch again on the key chain. Moon waxed and waned in this a natural phenomenon straight people are enraptured by classes whom. The ancient calendar had begun to use the calendar to the new moon occurs every cycle, as the base the unit of time. Watchmaking industry has always wanted to create a whole month to provide mechanical power reserve watch, but the skills needed, Let alone watch an entire month can make accurate and swatch running. Today, this watch has finally emerged:LANGE 31 watch up to 31 days of the huge reserves of power, but also swatch and running. With LANGE 31, watch the “number of times on the chain” can now be reduced to 12 times a year.
Photo: Lange L034.1 manual winding movement, five position precision-tuned, double barrel, board and concrete slab to untreated German silver, 406 parts, shock frequency of 21,600 times per hour, 61 jewels, including a transparent sapphire bearings, a total of 31 days (744 hours) power reserve.
The key driving force to start the month on the chain technology. In order to save the unprecedented power, LANGE 31 watch with two stacked giant barrel, the inside diameter of 25 mm meters, accounting for three-quarters the size of the movement. 1,850 mm in length each spring, the length of the two is the traditional winding watch movement five to ten times the power that they were issued, sufficient to a weight increase of 100 grams of Swiss chocolate 320 centimeters (more than 10 feet.) Such a powerful spring, if the device more vulnerable with the components of ordinary crown chain system, be quite laborious. This is also the antique pocket watch Lange engineers decided to use the word “key on a chain of technical” reasons. Produced on the key chain, lever, making it the best available transmission rate, which is not worthy of the crown on the chain can be compared. Square key inserted on the chain end of the sapphire crystal key chain hole, it will be sent to the barrel power. Mounted on a key chain a non-return ratchet, so that operations like the crown generally smooth on the chain-like, while also installed a torque limiter to prevent inadvertent the spring roll too tight to happen.
Photo: LANGE 31 is equipped with two stacked watch the giant barrel, the inside diameter of 25mm, occupying a quarter of the movement Three of the area.Constant innovation force escapement. Of course, can provide such a large force of the movement, if no special technical measures, is not always a swatch. The rate of operation. According to the laws of physics, the process of release in the spring, spring to open more of its torque to loose more and more weak, and therefore it is full of chain with the chain on the release sent out the same power when it is not possible. Less torque when with the amplitude balance will decrease the accuracy of the movement errors will result. In order to overcome the law of Vinci invented 500 years ago were power conical wheel (fusée) principle, the use of leverage to offset the torque spring decline. Lange has long been the principle of the operation of this sesame chain drive system, installed in two new generation watch Lange TOURBILLON “Pour le Mérite” and TOURBOGRAPH “Pour le Mérite” Tourbillon Chronograph sheet. But it is such a delicate part structure, how to cope with a power reserve of 31 days? Lange’s watchmaker. Only other engineers to find a solution, the results developed: constant force escapement. It has an auxiliary trip device Silk, gossamer winding back regularly this article and tight, and no matter how the situation on the chain, the same can be maintained Torque.
Photo: LANGE 31 watch by a constant force escapement, constant moving through the triangle cam and springs, and pivot bar bar, produce the same torque, can stabilize the power delivered to the escapement.
Clever principle of operation
This constant moving and tight gossamer (remontoir spring) assembly in quadruple round the spindle, loosen the time when it can hold continued to power sent to the same escapement. Perpetual springs and a bolt connection, it will be back every 10 seconds to its outer end and tight into a 60 degree angle. To complete the whole operation, while also add precise control of a transport loaded switch to a reliable device operation. Shoulder the heavy responsibility that is the balance wheel. Not only to ensure the promotion of balance fan wheel center four-pointer regular rotation axis, so that accurate time display pointer, it is also responsible for controlling the constant force escapement cycle. On the chain mechanism. Reuleaux polygon is fitted with a cam, the shape of an equilateral triangle that is the cam. This cam fan wheel spindle with four connections. Every 10 seconds, in other words, after each rotation angle of 60 degrees, it will drive a design refinement. Coincidentally, the pivot lever, leverage internal rotation of the two pawl with a single gear (The single gear is now winding through the gear train Box phase) teeth together, each complete a 180 degree rotation will be suspended from operation. Every time when it turns, a few seconds to the constant moving back and tight springs. Gossamer in the next 10 seconds from power will be transmitted to the escapement wheel.
Photo: constant force escapement device above the transparent sapphire bearings, so that players can clearly watch the triangular convex.
Swatch and the average power transmission
This is how much torque within 10 seconds there will be gaps, but the average in the entire 31 days of the output power is swatch. Sapphire crystal stone watch at the end will be a constant force escapement wonderful mechanical rhythm (similar to the traditional escapement) to show in front of people. The contact with the cam lever pivot point with the interaction between the transparent sapphire bearings in a gear, moving and graceful People. The basic concept is the design, the use of a constant force escapement to prevent the barrel torque output decreased, So as not to affect the accuracy of the watch to ensure the watch can be reached throughout the month: a swatch and the average power transmission, constant given amplitude, from the first day of the third eleven days can maintain the same accuracy rate, and the device will stop after the button of a button. Only movement operation. In theory, the sustainable movement is still running, but when spring has sufficient power output to be pay the required tightening torque constant moving springs, constant force escapement that can no longer operate reliably.
Photo: LANGE 31 watch the back of the figure, top left on the chain for the key hole.
Create useful new design
In fact, the founder Ferdinand Lange. Adolf. Lange has long noted the importance of constant power. About In 1866, he has successfully invented a constant-force escapement, jumping second device, the so-called “second constant dynamic device” (“One-second remontoir”), and assembly of precision in his pocket watch in manufacturing. Later he developed similar structure for the clock. The bell is still hanging in the headquarters building Lange, the pendulum is almost 10 meters long, to this is still Fengyubugai, on time every day to the staff and Glashütte Lange public timekeeping. 140 years later, Adolf. Lange ancestors descendants inherited the concept of the watch system, once again show the world their “constant power” insisted, successfully developed with 31 days power reserve of the new L034.1 movement. This is a designed for daily wear when excellence meter, from the inside to the outside are easy to use. Even a few days or even weeks do not wear, can run continuously for a long time precisely without the inter-chain, there is no other manual-winding watch can be worthy of comparison. LANGE 31 can continue seamlessly Lange, one of the traditional philosophy: to create useful new design.
Photo: L034.1 movement Front
Filling Lange classic style
LANGE 31 of the case in platinum, length of 46 mm in diameter, 15.9 mm thick, form huge and attention. After all, need to have some space to store such a long time. Circular window of 31 days power-reserve indicator also need space, it is a remarkable breakthrough in watchmaking tag, almost occupied the entire right half of the solid silver dial face. Power storage means the last frame is displayed in red to remind the owner watch is over a month, the chain has come. Lange great day located on the left side of the display, symmetrical, forming a harmonious balance between the visual effects. There is no doubt that all known Lange watch the ball all the advantages and features, LANGE 31 are also readily available: transparent sapphire crystal case back, screw balance wheel, gooseneck spinner, hand engraved balance cock, screwed gold sleeve to, and all kinds of extraordinary fine fine polished section, filling the Lange classic style.
