A. Lange & Söhne - Zeitwerk - Black Dial - 140.029 - 2021

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A. Lange & Söhne Zeitwerk – Black Dial – Ref. 140.029 – 2021

A. Lange & Söhne’s Zeitwerk is a modern horological masterpiece that fuses avant-garde design with Saxon watchmaking heritage. This 2021 reference 140.029 features a striking black dial framed by a robust 41.9mm platinum case—offering a bold yet elegant wrist presence that commands attention.

What sets the Zeitwerk apart is its patented mechanical digital time display, with jumping hours and minutes visible through the precisely milled apertures. The harmonious symmetry of the dial is elevated by the constant-force escapement, ensuring time is displayed with flawless accuracy. Complemented by a running seconds subdial and a power reserve indicator, this timepiece is both innovative and deeply functional.

With only a limited number of these watches produced each year, the Zeitwerk remains one of the most sought-after models in A. Lange & Söhne’s collection—a coveted choice for serious collectors and those with an eye for groundbreaking horology.


Key Features:

  • Model: Zeitwerk

  • Reference: 140.029

  • Year: 2021

  • Case Size: 41.9mm

  • Case Material: Platinum

  • Dial: Black with jumping hours and minutes

  • Movement: Lange Caliber L043.1 with constant-force escapement

  • Power Reserve: 36 hours (with indicator at 12 o’clock)

  • Strap: Hand-stitched black alligator leather

  • Functions: Digital jumping hours/minutes, small seconds, power reserve

  • Condition: Excellent

  • Includes: Original box and papers


Experience one of the most daring and technologically brilliant timepieces in contemporary watchmaking. The A. Lange & Söhne Zeitwerk is not just a watch—it’s an engineering revelation.

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