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Special limited edition crowns anniversary year
The 1815 TOURBILLON is the first A. Lange & Söhne watch that combines a stop-seconds device for the tourbillon and the ZERO-RESET mechanism. At the close of the anniversary year that commemorates the 200th birthday of Ferdinand Adolph Lange, this paragon of precision timekeeping is being presented in a limited HANDWERKSKUNST edition featuring extraordinary dial and movement decorations.
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Handwerkskunst, the German word for "artisanship", is an attribute of distinction that A. Lange & Söhne has been using since 2011 to identify special limited-edition watches whose dials and movements are endowed with rare finissage and engraving techniques. On 7 December 2015, the eminent Saxon manufactory is presenting the 1815 TOURBILLON HANDWERKSKUNST, a new model that not only stands out with exceptional decorative elements, but also unites two patented mechanisms.
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The ZERO-RESET function launched in 1997 by A. Lange & Söhne is paired with the stop-seconds device for the tourbillon that was introduced in 2008. Together, these mechanisms make it possible to stop and set the timepiece with one-second accuracy.
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Limited to 30 watches, the special-edition model is available in a pink-gold case with a diameter of 39.5 millimetres. A. Lange & Söhne's fifth HANDWERKSKUNST edition is a precious homage to Ferdinand Adolph Lange, the great Saxon watchmaking pioneer whose 200th birthday is being memorialised this year.
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Walter Lange von der Uhrenmanufaktur Lange und Söhne vor der Büste von Ferdinand Adolph Lange in Glashütte
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The main difference versus the model presented in 2014 is the dial. It is made of black-rhodiumed pink gold and decorated with elegant tremblage engraving. The engraver who uses this technique sculpts the material with a specially crafted lining burin to achieve a uniform, fine granular structure.
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The relief elements on the dial, including the prominent arced brand logo and the numerals, are later polished to a mirror gloss and contrast prominently against the dark background. An aperture in the dial reveals the large one-minute tourbillon. The tourbillon bridge and the upper part of the cage are black-polished: this is one of the most elaborate and time-consuming finissage techniques.
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Mechanical precision is reflected in every detail of the lavishly decorated L102.1 manufacture calibre. The elegantly curved shape of the newly designed three-quarter plate is a special hallmark. Thanks to generous cut-outs, the tourbillon with the patented stop mechanism is easily visible from the movement side as well, as are the spring barrel and parts of the wheel train.
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The grained surface of the German silver plate is inspired by historic pocket watches. Bevel-polishing reentrant angles is a particular challenge. This task can only be performed manually with a sharp, specially designed tool. The fourth-wheel bridge is pierced to provide a better view of the tourbillon.
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Just like the plate and the caseback, it is endowed with artistic engravings. The diamond endstone of the tourbillon vibrantly accentuates the movement decorations.
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Technical Specifications
Model: 1815 TOURBILLON Handwerkskunst Pink Gold Special Edition
Reference №: 730.048
Movement
Lange manufacture calibre L102.1.
Manually wound, crafted to the most exacting Lange quality standards, decorated and assembled by hand; precision-adjusted in five positions.
The lavish decorations of the manufacture caliber L102.1 can be seen through the sapphire-crystal caseback. Artistic engravings endow the plate, the fourth-wheel bridge and caseback.
The newly designed three-quarter plate made of untreated German silver has generous cut-outs and its grained surface is inspired by historic pocket watches.
Diameter: 32.6 millimetres; height: 6.6 millimetres
Movement parts: 262
Jewels: 21
Screwed gold chatons: 5
Escapement: Lever escapement
Oscillator: Shock-resistant screw balance, balance spring manufactured in-house with a frequency of 21,600 semi-oscillations per hour
Power reserve: 72 hours when fully wound
Functions
Hours, minutes and subsidiary seconds dial;
One-minute tourbillon with patented stop-seconds and patented ZERO-RESET mechanism;
72 hours power reserve
Operating elements:
Crown for winding the watch and setting the time.
Case
Pink Gold
Diameter: 39.5 millimetres; height: 11.0 millimetres
Crystal and back: Sapphire crystal (Mohs hardness 9)
Dial
Pink gold, black rhodiumed; with tremblage engraving
Hands: Pink gold and blued steel
Strap
Hand-stitched alligator leather strap, dark blue
Buckle: Pink-gold prong buckle
Limited edition: 30 watches
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Contact information for the media
Arnd Einhorn, Director Press and PR
* Tel.: +49 (0)35053 44 5505
E-mail: presse@lange-soehne.com
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