LANGEMATIKPERPETUAL can display the correct date every day, and it will not be corrected until 2100. This special edition watch is equipped with a proven self-winding movement and patented zero-setting device. A limited edition of 100 pieces of honey gold case are available. Honey Gold is the exclusive material of Lange. It is specially designed for selected models. It is extremely durable and complements the long-term and reliable performance of the perpetual calendar.
LANGEMATIKPERPETUAL Honey Gold
LANGEMATIKPERPETUAL honey gold models will be available at the Geneva International Haute Horlogerie 2019, limited to 100 pieces. Honey gold, as a unique material of Lange, is more durable than other gold alloys. The bezel and eye-catching lugs are polished, bright as mirrors, the case is well-defined, and the central part is trimmed with straight lines. The watch has a diameter of 38.5 millimeters and a complicated structure, but it is only 10.2 millimeters thick, ensuring that the watch owner is comfortable to wear.
The silver-white solid silver dial is in stark contrast to the luminous hands and 18K honey gold inlaid Roman scales. The outer ring with inlaid scales is embossed to make the dial more three-dimensional and deep. The dark brown crocodile leather strap with 18K honey gold buckle makes the overall design harmonious and balanced.
LANGEMATIKPERPETUAL’s perpetual calendar can distinguish between months with different days and leap years. After setting the watch correctly, it is not necessary to manually correct the date display at 12 o’clock until 2100. The year 2100 is a century, and it is also an exceptional year on the Gregorian calendar. It has no 29th day in February. The sub-dial at 9 o’clock displays the day of the week and the day / night indication; the second sub-dial at 3 o’clock displays the month, and the leap year displays below; the third sub-dial at 6 o’clock has a small second and moon phase display , And can also indicate a longer period of time, only one day needs to be corrected every 122.6 years. All calendar displays can be advanced individually or simultaneously via the hidden main button at 10 o’clock.
Lange watch factory homemade L922.1SAX-0-MAT movement
When LANGEMATIKPERPETUAL came out in 2001, it was the world’s first Lange automatic watch with a large calendar display and perpetual calendar function. The L922.1Sax-0-Mat automatic winding movement is equipped with a patented zero-setting device. When the crown is pulled out, the balance wheel stops and the second hand returns to the zero position, simplifying the time setting process. The 21K gold two-way self-winding oscillating weight with external platinum 950 centrifugal pieces can provide a watch with a power reserve of up to 46 hours for short periods of wear. In addition, the oscillating weight is set on the Lange 3/4 splint of the movement. As a result, the watch has a slimmer appearance. The escapement, hand-engraved balance wheel splint, and classic gooseneck spinner are all in sight. The sapphire crystal case back reveals all the finely modified details of the movement; the movement has been assembled twice and fine-tuned from five directions.
LANGEMATIKPERPETUAL Model 310.050
Movement Lange’s own L922.1SAX-0-MAT movement; automatic winding, in accordance with Lange’s strict quality standards, carefully modified and assembled by hand; five-way precision adjustment; 3/4 plywood by untreated Made of German silver with 21K gold 3/4 self-winding oscillating weight and platinum 950 centrifugal block; reversing and reduction gear with four ball bearings; hand-engraved balance wheel plywood
Movement parts 478
Sapphire Bearing 43
Escapement system lever escapement system
Oscillation system Vibration-resistant screw balance, vibrating frequency up to 21,600 times per hour, gooseneck trimmer with patented trimming system
Power reserve: 46 hours when fully wound
Functions Hour and minute display; small seconds with stop-seconds device and patented zero reset device; perpetual calendar with date, day, month, moon phase and leap year display; day / night indication
Operating elements The crown is used for winding and setting the time; the hidden main button can advance all calendar displays at the same time; the hidden correction button can independently advance the day, month and moon phase display
Case dimensions Diameter: 38.5 mm; thickness: 10.2 mm
Movement size diameter: 30.4 mm; thickness: 5.7 mm
Glass and case back Sapphire crystal (Mohs hardness 9)
Case 18K Honey Gold
Dial Solid silver, silvery white, embossed
Hands and insets 18K honey gold, luminous
Strap Hand-stitched alligator leather strap, dark brown
Clasp 18K Honey Gold Pin Buckle
Limited edition of 100 pieces