朗格，罕有，18K白金跳時及分鐘腕錶，配動力儲存，ZEITWERK，型號140.029，約2011年製，附原廠證書，盒子及外包裝

Launched in 2009, the Zeitwerk is the first mechanical wristwatch displaying the time digitally, providing its wearer with the upmost legibility due to the size of the windows and its ingenuous jumping hour and minute system. Filling the entire case, the movement provides an important amount of energy in order for the three discs to simultaneously move, made possible through a patented system increasing the available torque for the supply of energy to the movement and the three discs for hours and minutes.

Also patented, a constant force escapement is used in order to stabilize the release of energy and the movement’s functioning during the 36 hour autonomy provided by the power reserve. Adding to the overall appeal, the beautifully finished German silver calibre L043.1 integrates 416 parts and a hand-engraved balance cock necessitating between 50 to 90 hours for finishing.

The Zeitwerk was awarded the "L' Aiguille d'Or" (“Golden Hand“) at the 2009 "Grand Prix d'Horlogerie de Genève".