====== A. Lange & Söhne Tourbograph “Pour le Mérite” ======

{{wst>image_r|A_Lange_&_Söhne_Tourbograph_Pour_le_Merite|Tourbograph "Pour le Mérite"\\ © [[A. Lange & Söhne]]}}
{{wst>image_r|Lange_L903.0|Calibre L903.0\\ © [[A. Lange & Söhne]]}}
{{wst>image_r|Lange_L903.0_RS|A. Lange & Söhne Tourbograph "Pour le Mérite" (back)\\ © [[A. Lange & Söhne]]}}
{{wst>image_r|Lange_L903.0_SchwingsystemZB|Calibre Lange L903.0\\ oscillation system, dial side\\ © [[A. Lange & Söhne]]}}

Wristwatch by [[A. Lange & Söhne]], part of the [[A. Lange & Söhne Pour le Mérite|Pour le Mérite]] line.

To mark the 15th anniversary of the reestablishment of A. Lange & Söhne, at the 7th December [[2005]], the traditional Glashütte manufacture with the Tourbograph "Pour le Mérite" presented a watch of superlatives to demonstrate their skills and their watchmaking brilliance in a kind of representative cross-section. For the first time in watchmaking history a watch unites the following refinements in the dimensions of a watch drive via chain and fusee, [[tourbillon]] and [[fly-back]] [[chronograph]]. Rattrapante means With the help of the fine, overlapping pair of hands from the dial center addition times can be stopped up to 30 minutes and also any number of split times exactly to the sixth of a second.

The production was so expensive that the first pieces were completed only at the end of [[2006]]. Even after that just one piece per month could leave the production. Overall, the edition was limited to 101 pieces.

The heart of the watch is the [[manual winding]] [[manufacture]] movement [[Lange L903|L903.0]]. The fascinating motion of the [[tourbillon]] bogie can be either watched from the side of the dial or through the [[sapphire crystal]] caseback. Through the caseback the [[rattrapante]] [[chronograph]] mechanism and below the drive via chain and screw can also be admired.

First the watch case is only produced in [[platinum]]. (The Plans are to produce after 51 platinum models another 50 models in [[gold]].)

As with the [[A. Lange & Söhne Tourbillon "Pour le Mérite"|Tourbillon „Pour le Mérite"]] also here the name affix alludes to the Prussian Order of Merit, inspired by Alexander von Humboldt and awarded by King Friedrich Wilhelm IV in [[1842]] for outstanding achievements in the field of science. And what this watch is concerned, the term is truly appropriate. The design of this watch is, by the way, based on plans of the co-founder of the new Lange era, [[Günter Blümlein]], who in [[2001]] had been torn from his fruitful work by a deadly disease. Now it has been explicitly devoted by the builders to the major watch visionary.

[[A. Lange & Söhne]] won the Special Jury Prize at the [[Grand Prix d'Horlogerie de Genève]] for the Tourbograph "Pour le Mérite" in November, [[2006]].

<WRAP ud ud_mod>
**Reference:**
  * 702.025 [[platinum]]

**Movement:**
  * [[Manual winding]] [[manufacture]] movement [[Lange L903|L903.0]], 21,600 A/h,
  * [[Rattrapante chronograph]] mechanism
  * [[Tourbillon]] with chain and screw and planet drive for constant force supply
  * [[Double barrel]]
  * [[Terminal curve]] of the [[balance spring]] bent according to calculations of Prof. Strasser, Glashütte
  * Control of the [[rattrapante]] chronograph mechanism in Lange-typical fashion by two [[column wheel]]s
  * [[Plate]]s and [[bridge]]s in untreated [[German silver]]
  * 41 [[jewels]] in synthetical [[ruby]], 6 of which in [[gold]] chatons
  * More than 1,000 components
  * Power reserve 36 h

**Case:**
  * [[Platinum]] 
  * Ø 41.2 mm, height 14.3 mm
  * [[Sapphire crystal]]
  * Caseback [[platinum]] solid, secured with six screws, with [[sapphire crystal]] window

**Dial:**
  * Solid [[silver]], argenté, arabic numerals and minute track
  * Lancet hands in [[blued]] steel

**Functions:**
  * Hours, minutes, [[small seconds]]
  * [[Power reserve indicator]]
  * Chronograph seconds, 30-minutes counter, [[rattrapante]] hand

**Bracelet:**
  * Crocodile leather with [[tang-type buckle]] in platinum

**Price:**
  * Depending on the version from about 380,000 €
</WRAP>

{{tag>Watch_models Chronographs Watches_with_tourbillon A._Lange_&_Söhne_models A._Lange_&_Söhne_Pour_le_Mérite_models}}