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A. Lange & Söhne Richard Lange Tourbillon “Pour le Mérite”

Richard Lange Tourbillon "Pour le Mérite" (Platinum) (click to enlarge!)
Richard Lange Tourbillon “Pour le Mérite” (Platinum)
© A. Lange & Söhne

Richard Lange Tourbillon "Pour le Mérite" (Red gold) (click to enlarge!)
Richard Lange Tourbillon “Pour le Mérite” (Red gold)
© A. Lange & Söhne

Lange L072.1 (click to enlarge!)
Lange L072.1
© Lange Uhren GmbH

The Richard Lange Tourbillon “Pour le Mérite” is a luxury watch by A. Lange & Söhne.

Presented in January 2011, the model's dial layout cites a famous historical model: a regulator-chronometer by Johann Heinrich Seyffert (1751-1817) from the year 1807. As early as 1797, the famous naturalist Alexander von Humboldt had traveled to Dresden specifically to purchase a chronometer by Seyffert for his South American excursion. The 1807 model, with three overlapping displays and a fusée-and-chain mechanism for constant drive, is now in the collection of the “Mathematisch-Physikalischer Salon” in Dresden. This design inspired the Richard Lange Tourbillon “Pour le Mérite”, which transfers the pocket watch layout to the wristwatch.

Functional description by the manufacturer Lange & Söhne:

A round cut-out in the seconds dial, traversed by the minute scale and by the recessed tourbillon bridge, reveals the tourbillon cage. But the tourbillon can be admired in its entirety only from twelve to six o’clock. At six, a dial segment with the Roman numerals VIII, IX, and X instantaneously pivots into the aperture to make the hour scale complete.

A. Lange & Söhne Richard Lange Tourbillon „Pour le Mérite“ pivoting dial (click to enlarge!)
A. Lange & Söhne Richard Lange Tourbillon „Pour le Mérite“ pivoting dial
© A. Lange & Söhne

The motion is generated by an ingenious switching mechanism, which assures that the dial segment is advanced by 90 degrees in increments of six hours. Thanks to this remarkable feature, the watch tells the time unambiguously during the morning and the evening as well. At twelve o’clock, the hours dial segment vanishes as quickly as it appeared and for the next six hours again fully exposes the tourbillon as it concurrently revolves and reciprocates.

Its task is to offset rate deviations that can potentially be caused by the effect of gravity on the balance wheel. With a patented stop-seconds mechanism, the tourbillon can be halted simply by pulling the crown, allowing the time displayed by the watch to be set to one-second accuracy.





  • Massiv Silver, argenté (Red gold version) / rhodié (platinum version)
  • Hands: Red gold / Gold, rhodinated



  • Hand-sewn crocodile leather strap with folding clasp in platinum or red gold

Limited edition:

  • Red gold - / Platinum 100 pieces
a._lange_soehne_richard_lange_tourbillon_pour_le_merite.txt · Last modified: 02.12.2022 20:42 by

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