====== Lange L903 ======
{{wst>image_cr|Lange|L903.0}}

The **L903.0** is a calibre by [[A. Lange & Söhne]].

[[Manual winding]] [[manufacture movement]] with minute [[tourbillon]] (with [[fusée-and-chain transmission]]), [[chronograph]] with [[rattrapante]] function.

Used in the model [[A. Lange & Söhne Tourbograph "Pour le Mérite"]].


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**Description:**
  * [[Manual winding]] movement
  * Chronograph [[bridge]] engraved by hand
  * Shock-resistant [[Glucydur]] [[screw balance]]
  * [[Plate]] and [[bridge]]s from natural [[nickel silver]]

**Functions:**
  * Hours, minutes
  * [[Power reserve indicator]]
  * Minute [[tourbillon]] with [[fusée-and-chain transmission]]
  * [[Chronograph]] with [[rattrapante]] function

**Data:**
  * Ø 30.0 mm, height 8.9 mm
  * 43 [[jewels]], including 2 [[diamond]] capstones
  * 21,600 A/h
  * Number of components 465 (without chain), including bogie 84
  * [[Power reserve]] 36 h

**Production period:**
  * From [[2005]]
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{{tag>Movements Manual_winding_movements Chronograph_movements Rattrapante_chronograph_movements Tourbillon_movements A._Lange_&_Söhne_calibres}}