Kong[Moderator]
7855
Beyond the Superlative: RICHARD LANGE TOURBILLON “Pour le Mérite” HANDWERKSKUNST
The fourth “Pour le Mérite” timepiece presented by A.
Lange & Söhne in a limited 15-watch edition is a manifestation of
artisanal virtuosity at the highest level. The case in honey-coloured
gold accommodates two complications – a fusée-and-chain transmission and
a tourbillon – both designed explicitly to achieve the highest degree
of precision.

In a honey-coloured gold case: RICHARD LANGE TOURBILLON “Pour le Mérite” HANDWERKSKUNST
It
was only last January at the Watch Salon in Geneva that the Saxon
manufactory showcased its RICHARD LANGE TOURBILLON with the distinction
“Pour le Mérite”.
So far at Lange, this hallmark has been reserved for
four exceptionally complicated watches endowed with the unique
fusée-and-chain transmission. The ingenious mechanism assures that the
going train is driven with a constant force across the entire power
reserve duration, keeping the rate accuracy of the watch stable.
Inspired
by a historic predecessor, this regulator takes horological artistry to
a new level that merits the attribute “HANDWERKSKUNST”: With exquisite
dial and movement decorations, the Saxon masters demonstrate impressive
new facets of traditional craftsmanship. Concurrently, the case in
honey-coloured gold stands for the brand’s firm resolve to leverage
technological progress in the interest of the discerning owners of Lange
watches. With a Vickers hardness of over 300 HV, the innovative gold
alloy outclasses all other known gold blends with respect to durability.
Crafted
from the same material, the dial is decorated with a so-called
tremblage. This is the name of a traditional engraving technique in
which a lining burin is guided over the material with an orbital motion
in eight different directions. The result is a delicate granular texture
that resembles a three-dimensional satin finish. Its complement is the
radiant solarisation on the three-quarter plate made of untreated German
silver, which can be admired through the sapphire-crystal caseback.
Finally, the fourth-wheel bridge is embellished with an elaborate relief
engraving. Contrary to the more common intaglio engraving, this
technique is used to sculpt the motif out of the material, in effect
raising it from the background.
The miniature masterpiece is
subsequently crowned with a diamond endstone that functions as a bearing
for the tourbillon. Its patented stop seconds mechanism allows the
watch to be set with one-second accuracy. A round aperture in the
regulator dial exposes the system, which revolves and oscillates at the
same time. To prolong the duration of the delightful mechanical ballet
for the observer, the adjacent hour dial features a cutaway portion. But
precisely at 6 o’clock, the missing segment pivots into place and
completes the hour ring until it instantly vanishes again exactly at 12
o’clock.
This extraordinary collector’s item is limited to 15
pieces that are available exclusively at the five A. Lange & Söhne
boutiques in Dresden, Shanghai, Tokyo, Seoul, and Hong Kong.

Immaculate craftsmanship: The fourth-wheel bridge is embellished with an elaborate relief engraving.
Data
sheet RICHARD LANGE TOURBILLON “Pour le Mérite” Ref. 760.050
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Movement
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Lange manufacture calibre L072.1, manually wound,
fusée-and-chain transmission; crafted to the most exacting Lange quality
standards and largely decorated and assembled by hand; precision-adjusted in
five positions; three-quarter plate made of untreated German silver;
fourth-wheel bridge engraved by hand
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No. of movement parts
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351 (without chain); chain parts: 636
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Jewels
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32, of which one diamond endstone
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Screwed gold chatons
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3
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Escapement
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Lever escapement
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Oscillation system
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Shock-resistant Glucydur® screw
balance*, superior-quality balance spring manufactured in-house, frequency
21,600 semi-oscillations per hour
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Power reserve
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36 hours when fully wound
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Functions
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Time display in hours, minutes, subsidiary
seconds; one-minute tourbillon with patented stop seconds; pivoting dial
segment
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Operating elements
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Crown for winding the watch and setting the
time
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Case dimensions
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Diameter: 41.9 millimetres; height: 12.2
millimetres
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Movement dimensions
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Diameter: 33.6 millimetres; height: 7.6
millimetres
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Glass and caseback
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Sapphire crystal (hardness 9)
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Edition
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15 watches
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Case
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Honey-coloured gold
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Dial
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Solid honey-coloured gold, engraved by hand
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Hands
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Gold
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Strap
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Hand-stitched crocodile strap, red-brown
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Buckle
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Lange deployant buckle in solid honey-coloured
gold
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Press Release
This message has been edited by Kong on 2011-09-20 23:11:13