====== Lange L021 ======
{{wst>image_cr|Lange|L021.1}}

The **Lange L021** is a calibre by [[A. Lange & Söhne]].

===== L021.1 =====
[[Self-winding]] [[manufacture movement]] with [[big date]].

Used in the model [[A. Lange & Söhne Lange 1 Daymatic]].

<WRAP ud ud_mov>
**Description:**
  * [[Self-winding]] movement
  * [[Rotor]] with [[weight segment]] in [[platinum]]
  * [[Balance]] [[clock]] engraved by hand
  * Shock-resistant [[Glucydur]] [[balance]] with [[regulation eccentrics]]
  * Fine adjustment system with lateral setscrew and swan's neck spring

**Functions:**
  * Hours, minutes
  * [[Small seconds]] with [[hacking seconds]]
  * [[Big date]]
  * Date and day of weeks correction pusher

**Data:**
  * Ø 31.6 mm, height 6.1 mm
  * 67 [[jewels]], including 7 in gold [[chaton]]s, fixed with [[blued]] screws 
  * 21,600 A/h
  * Components 427
  * [[Power reserve]] 50 h

**Production period:**
  * From [[2010]]
</WRAP>

===== L021.3 =====

[[Automatic]] [[manufacture]] movement with [[perpetual calendar]], [[big date]] and [[moon phase indication]].

Used in the [[A. Lange & Söhne Lange 1 Perpetual Calendar|Lange 1 Perpetual Calendar]] model.

<WRAP ud ud_mov>
**Functions:**
  * Hours, minutes
  * [[Small seconds]]
  * [[Perpetual calendar]] with precisely [[jumping]] indications for [[big date]], day of week, month and leap year
  * [[Moon phase indication]] with integrated [[day-/night indication]]

**Data:**
  * Ø 35.8 mm, height 8,8 mm
  * 63 [[jewels]], including 5 in screwed gold [[chaton]]s
  * 621 components
  * [[Power reserve]] 50 hours

**Production period:**
  * From ?
</WRAP>


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