41.9mm platinum case (12.6mm thick), manual wind Lange L043.4 caliber (36 hrs power reserve, hand finished)
A new edition of A. Lange & Sohne’s highly acclaimed LANGE ZEITWERK is introduced — the ZEITWERK HANDWERKSKUNST (Ref. 140.08) featuring a hand engraved white gold dial with granular tremblage finishing. As a 30-piece limited edition with the designation HANDWERKSKUNST (“craftsmanship”) , the ZEITWERK has risen to a new level: exquisite case, dial, and movement decorations as well as a Glashütte lever escapement stand for the artisanal and horological proficiency of the Saxon manufactory. A closer look at this superlative timepiece follows.
You can see here in close detail the hand-engraved dial with elaborate tremblage finish. The delicate and highly vivid granular texture of the tremblage technique is exquisite:
Note also how the curved “A. Lange & Söhne” logo and the filigreed lettering of the power-reserve indicator stand in sharply contoured relief above the tremblage finish.
And here is a nice angle on the watch — note how beautiful the platinum case is, with brushed side band and mirror polished lugs and bezel ring:
Like with other Zeitwerk watches, the bridge for the jump hour display is in German silver, while the seconds sub-dial is sterling silver. When it comes to telling the time, well, there is no question thanks to the Zeitwerk’s numeric display.
Looking back, it was just three years ago that A. Lange & Söhne presented the first LANGE ZEITWERK. It was the first mechanical watch that featured a constant-force escapement to achieve a precisely jumping numerals display. In 2010, the very unique Zeitwerk Luminous was launched.
Of course while of the Zeitwerk design, the Zeitwerk Handerkunst takes some of its finishing cues from the the Richard Lange Tourbillon “Pour le Mérite” Handwerkskunst. This piece, shown below, was introduced September 2011 — with the same hand engraved dial and tremblage finish (below).
Richard Lange Tourbillon “Pour le Mérite” Handwerkskunst (2011)
Now unfortunately I do not have a good full image of the movement (calibre L043.4), but it is basically a variation on the original Zeitwerk caliber, the L043.1, visible through a sapphire-crystal caseback. The Lo43.4 features the traditional German three-quarter plate and screwed gold chatons, as well as several additional special decorations, of which I will show you here.
The three-quarter plate, made of untreated German silver, is endowed with a granular surface and hand-engraved lettering.
The balance and escape wheel cocks are also decorated with a special free-hand engraving:
And in another nod to traditional watchmaking techniques, this watch features a Glashütte lever escapement. Its lever and escape wheel are made of hardened 18-carat gold. The advantage of the material was its insensitivity to magnetic fields. The antimagnetic steel alloys commonly used today were not available then. The lever is designed to remain well balanced in any position. The pallets are concealed and slightly curved to reduce the friction between them and the escape wheel:
The A. Lange & Söhne signature on the mainspring barrel is also executed as a relief engraving (not picture).
The exclusive collector’s item is limited to 30 watches that are distributed exclusively through the seven A. Lange & Söhne boutiques worldwide, including Lange’s soon-to-be-opened boutique at the Dubai Mall. Retail price on the LANGE ZEITWERK HANDWERKSKUNST is EUR95,000 (about $125,000 USD at current f/x).