====== Lange L921 ======

{{wst>image_cr|Lange|L921.2}}

**Lange L921.2** is an [[automatic]] caliber by [[A. Lange & Söhne]].

It was used in the following models:
  * [[A. Lange & Söhne Langematik|Langematik]] without big date
  * [[A. Lange & Söhne 1815 Automatik|1815 Automatik]]
  * [[A. Lange & Söhne 1815 “Cuvette“|1815 “Cuvette“]]
  * [[A. Lange & Söhne Saxonia Automatic|Saxonia Automatic]]

<WRAP ud ud_mov>
**Description:**
  * [[Manufacture]] movement SAX-0-MAT
  * [[Automatic]] winding with three quarter rotor, patented ZERO-RESET
  * [[Escapement]]: stone lever
  * Bidirectonal winding [[rotor]] in 21 ct gold and platinum
  * Hand-engraved [[balance cock]] with [[swan's neck fine regulation]]
  * [[Glucydur]] [[screw balance]] with [[hacking seconds]], [[Nivarox]] [[balance spring]]
  * Glashütte [[three-quarter plate]] in untreated Nickel silver
  * Movement bridges with Glashütte ribbing
  * All edges in the movement [[chamfered]] and polished

**Functions:**
  * Hours, minutes
  * [[Small seconds]] at 6 h
  * [[Big date]]

**Data:**
  * ∅ 30.4 mm, H 3.8 mm
  * 21,600 A/h
  * 36 [[jewels]], including 4 in screwed gold [[chaton]]s
  * 378 components
  * Power reserve 45 h

**Production period:**
  * From [[1997]]
</WRAP>

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