====== Lange L051 ======

**Lange L051** is a caliber by [[A. Lange & Söhne]].

[[Hand-wound]] [[manufacture]] movement with [[small seconds]].

===== L051.1 =====
{{wst>image_cr|Lange|L051.1}}

Used in the model [[A. Lange & Söhne New 1815]].

<WRAP ud ud_mov>
**Description:**
  * [[Manual winding]] movement
  * Shock-resistant [[Glucydur]] [[screw balance]]
  * [[Nivarox]] [[balance spring]]
  * [[Swan's neck fine regulation]] and patented beat adjustment mechanism
  * [[Three-quarter plate]] in untreated [[nickel silver]]
  * [[Balance cock]] engraved by hand

**Functions:**
  * Hours, minutes
  * [[Small seconds]]

**Data:**
  * Ø 30.6 mm, height 4.6 mm
  * 21 [[jewels]], including 5 in screwed gold [[chaton]]s
  * 21,600 A/h
  * Number of components 188
  * Power reserve 55 h

**Production period:**
  * From [[2009]]
</WRAP>

===== L051.2 =====

{{wst>image_cr|Lange|L051.2}}

With additional [[power reserve indicator]], used in the model [[A. Lange & Söhne 1815 Up and Down]].

<WRAP ud ud_mov>
**Data:**
  * 29 [[jewels]], including 7 in screwed gold [[chaton]]s
  * 245 components
  * [[Power reserve indicator]]
  * Power reserve 72 hours
</WRAP>

{{tag>Movements Manual_winding_movements A._Lange_&_Söhne_calibres}}