This model was introduced in 2011. The dial is crafted from solid silver. The hands are made of pink gold.

The dial design of the RICHARD LANGE TOURBILLON “Pour le Mérite” was inspired by precision chronometer No. 93 crafted by Johann Heinrich Seyffert, a gifted watchmaker who in the late 18th century established the fundamentals of precision timekeeping in Saxony. Alexander von Humboldt, a natural scientist, expressed particular appreciation for his work and relied on his timepieces to calculate the co-ordinates of his locations during his expeditions and perform many scientific measurements.

With a fusée-and-chain transmission and a one-minute tourbillon, this watch incorporates two of the most effective complications that increase rate accuracy. Thanks to the patented stop-seconds mechanism, the tourbillon – and with it the entire movement – can be stopped and set to one-second accuracy. When it is not needed for the reading of the hour, an auxiliary pivoting-dial segment affords a view of the tourbillon. Between 6 and 12 o’clock, it pivots back to complete the hour circle with the numerals VIII, IX and X.

• Movement: Manually wound mechanical movement.
• Calibre: L072.1
• Crystal: Sapphire crystal on front and back
• Functions: Hours subdial with pivoting dial segment; sweep minutes; connected to the tourbillon: subsidiary seconds with stop seconds
• Bracelet Strap: Handstitched black alligator strap with Lange pin buckle
• Power Reserve: 36 hours power reserve