Quelltext der Seite The Beauty of the Invisible

'''The Beauty of the Invisible'''

''Traditional finish techniques at A. Lange & Söhne''

[[A. Lange & Söhne]] timepieces of the 21st century constitute the link to a heritage that began in Saxony more than 165 years ago. From the very beginning, [[Ferdinand A. Lange]] described his business philosophy as follows: “With the knowledge that quality craftsmanship always assures the most advantageous purchase, we are aware that we can render the best service to our clientele by supplying only watches of the highest class.” Lange still upholds this commitment to the ethics of the artisan, because this alone creates a little piece of eternity in an ever changing world.

Indeed, [[A. Lange & Söhne]] timepieces still feature quality hallmarks that were once the norm in high-end watchmaking, but which were gradually abandoned in favour of costeffectiveness in production. Among the typical hallmarks are the surface finishes applied to nearly all movement parts. For the owner of such a piece of art, the composition of aesthetic details is matched by the mechanical precision of the movement. Every single one of them illustrates the manufactory’s uncompromising quest for perfection.


== Here is an overview of the most important finish techniques: ==

[[Datei:Sonnenschliff.jpg|thumb|Sunray finish]]
=== The sunray finish ===
The sunray finish is mainly used on bigger wheels and parts of the framework. The graining results in a spirally pattern.
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[[Datei:Glashütter Bandschliff.jpg|thumb|Glashütte ribbing]]
=== The Glashütte ribbing ===
The Glashütte ribbing emulates a gently rippled effect. The pattern decorates the [[three-quarter plate]] and some other large parts of the framework.
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[[Datei:Kreisschliff.jpg|thumb|Circular graining]]
=== The circular graining ===
Circular graining is used on round shapes such as wheels. Unlike most other finishes, this one is applied by rotating the part around the tool.
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[[Datei:Strichschliff.jpg|thumb|Linear finish]]
=== The linear finish ===
The fine lines in a parallel direction are achieved by sliding a part in one direction over a piece of abrasive paper.
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[[Datei:Perlage.jpg|thumb|Perlage]]
=== The perlage ===
The perlage consists of small, overlapping circles, achieved with a rotating grinding tip. In A. Lange & Söhne watches, it is mainly used for [[Bridge|bridges]] and plates.
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[[Datei:Flachpolitur.jpg|thumb|Flat polish]]
=== The flat polish ===
The mirror-smooth surface of the flat polish is achieved by rubbing the part in a figure-eight motion on special foils coated with diamond dust.
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[[Datei:Fasenpolitur.jpg|thumb|Chamfering]]
=== Chamfering ===
At Lange every single bevel on almost all
parts is polished by hand, at an angle of exactly 45 degrees. Sharp inner corners are particularly challenging.
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[[Datei:Umfangschliff.jpg|thumb|Contour grinding]]
=== Contour grinding ===
The contours of all framework components are given a matt finish to create a vivid interplay with the polished edges.
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[[Datei:Schwarzpolitur.jpg|thumb|Schwarzpolitur]]
=== Die Schwarzpolitur ===
Die Schwarzpolitur ist die anspruchsvollste und zeitintensivste Art der Finissierung. Sie wird nur der [[Tourbillon]]brücke und dem Käfigoberteil zuteil. Die Politur eines einzigen Teils kann bis zu fünf Tage in Anspruch nehmen.
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[[Datei:Gravur.jpg|thumb|Gravur]]
=== Die Gravur ===
Die Gravur lässt jeden Zeitmesser von A. Lange & Söhne zum Unikat werden: Jeder Unruhkloben wird von einem von sechs Meistergraveuren im freien Schnitt mit einem floralen Muster verziert.

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