The Basics

The A. Lange & Söhne Tourbograph Perpetual ‘Pour le Mérite’ 706.025 was introduced at SIHH as the fifth model in the brand’s ‘Pour le Mérite’ series. It pairs the tourbillon with chain & fusee mechanism to a rattrapante chronograph and a perpetual calendar, resulting in the most complex model in the series thus far. The inaugural ref. 706.025 featuers a platinum case and a silver dial. It is limited to 50 pieces.

Brand: A. Lange & Söhne
Family: Tourbillon
Reference: 706.025
Name: Tourbograph Perpetual ‘Pour le Mérite’ Platinum / Silver
Produced: 2017
Limited: Yes, 50 units

Below is a detailed look at A. Lange & Söhne’s model 706.025 from Tourbillon watch family, including the price, case details and movement features.

A. Lange & Söhne Tourbillon 706.025

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The Details

A. Lange & Söhne’s Tourbograph Perpetual ‘Pour le Mérite’ Platinum / Silver (706.025) was originally released in 2017. This watch features a hand-wound movement beating at a frequency of 21600 bph ( 3 Hz) to provide a 36-hour power reserve when fully wound.

The Case

The platinum case measures 43mm in diameter and roughly 16.6mm thick. The round case is paired with a silver color dial with alpha-shaped hands, and a arabic numerals hour markers and minute track, covered by a sapphire glass. A. Lange & Söhne’s Tourbillon model 706.025 water resistance is not available. This does not mean this watch is not water resistant. A display caseback is over the back of the watch case.

Material: Platinum
Glass: Sapphire
Back: Display
Shape: Round
Diameter: 43mm
Height: 16.6mm
Lug Width: N/Amm
W/R: N/A

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Tourbillon 706.025 movement is a powered by caliber L133.1 made by A. Lange & Söhne. The 52-jewel hand-wound movement is 32mm in diameter. Its balance wheel oscillates at 21,600 semi-oscillations per hour or 3 Hz. This movement offers a 36-hour power reserve.

Type: Hand-Wound
Brand: A. Lange & Söhne
Caliber: L133.1
Base: N/A
Display: Analog
Diameter: 32mm
Jewels: 52
Reserve: 36 hours
Frequency: 21600 bph
Time: Hours, Minutes
Chronograph: Chronograph, Column wheel, Flyback, Rattrapante

The Price

How much does the A. Lange & Söhne’s Tourbillon 706.025 cost? This watch was introduced in 2017 and has been in A. Lange & Söhne’s collection for around . This watch is a limited edition with just 50 pieces released. As with most luxury watches, the price of depends on the availability and demand.

CURRENT PRICE: Not Available .

For more information, visit A. Lange & Söhne online.


  • Brand: A. Lange & Söhne
  • Model: Tourbograph Perpetual ‘Pour le Mérite’ Platinum / Silver
  • Reference Number: 706.025
  • Limited: Yes, 50 units

Case & Dial:

  • Material: Platinum
  • Glass: Sapphire
  • Back: Display
  • Diameter: 43
  • Thickness: 16.6
  • Lug Width: N/A
  • Dial Color: Silver
  • Indexes: Arabic Numerals and Alpha-shaped hands
  • Water Resistance: N/A meters


  • Winding: Hand-Wound
  • Brand: A. Lange & Söhne
  • Caliber: L133.1
  • Display: Analog
  • Diameter: 32mm
  • Jewels: 52
  • Power Reserve: 36 hours
  • Frequency: 21600 bph
  • Functions: Hours, Minutes

About A. Lange & Söhne

A. Lange & Söhne logo

Ferdinand Adolph Lange founded A. Lange & Söhne in 1845 in Glashütte, Germany. A. Lange & Söhne watches are instantly recognizable as a different style in movement construction. The characteristics are closer to classic British watches than Swiss. Three quarter plates with engraved balance cocks are often seen, along with screwed chatons for the jewels. A. Lange & Söhne is part of the Richemont group.

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