ZEITWERK HANDWERKSKUNST | A. Lange & Söhne
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ZEITWERK HANDWERKSKUNST

Engineering prowess with artisanal perfection

The lining burin resembles a flat burin, but its cutting edge has sharp teeth. To execute the tremblage on the dial of the ZEITWERK HANDWERKSKUNST presented in 2012, the engraver manually guides the custom-crafted lining burin across the black-rhodiumed white gold in different directions. The lavish finissage underscores the technical sophistication of the digital jumping numerals display.

The ZEITWERK HANDWERKSKUNST timepiece in platinum features the so-called Glashütte lever escapement with lever and escape wheel made of hardened 18-carat gold.
Functions of the ZEITWERK HANDWERKSKUNST in platinum: jumping numerals display for hours and minutes, subsidiary seconds with stop seconds, UP/DOWN power-reserve indicator, 36 hours power reserve.

A special feature of the watch presented in a limited edition of 30 pieces is that the lever and escape wheel are made of hardened 18-carat gold according to a historic role model, the so-called Glashütte lever escapement. The material was chosen because it is insensitive to magnetic fields; common present-day antimagnetic steel alloys did not yet exist in the 19th century. The covered pallets are slightly domed and reduce the friction between them and the escape wheel.

Movement L043.4

Number of parts

425

Number of rubies

68

Number of chatons

2

Power reserve

36 hours when fully wound

Oscillator

Frequency: 18000 semi-oscillations per hour

Beat-adjustment system: Screw balance

Movement measures

Diameter: 33.6 mm; height: 9.3 mm

Movement Movement