====== JLC 380 ======
{{wst>image_r|JLC_380|Calibre JLC 380 'Dual-Wing'}}
The **JLC 380** is a watch movement from [[Jaeger-LeCoultre]].

Introduced at [[SIHH]] in [[2007]] along with the [[Jaeger-LeCoultre Duomètre à Chronographe|Duomètre à Chronographe]], "Dual-Wing" calibre 380 is unusual in that it features two [[barrel]]s and two independent [[gear train]]s, joined by a single [[escapement]] and [[balance]]. One barrel and gear train powers the time display while the second powers the [[chronograph]] complications. The chronograph features [[Seconde Foudroyante]] in a 6 00 subdial, allowing measurement to one sixth of a second. Unusually, the time display is placed in a 10 00 subdial, with the chronograph time at 2 00. This corresponds to the two barrels of the movement. Two seconds hands are central and use the main dial, one each for time and chronograph. Dual [[power reserve indicator]]s complete the complications. The barrels are wound independently by the [[crown]] Clockwise for timekeeping and counter clockwise for the chronograph.

The JLC 380 is an extra-flat [[manual winding]] [[chronograph]] movement with, 21,600 A/h, 48 [[jewels]], [[screwed balance]] with gold weight screws, [[Incabloc]] [[shock protection]], and 50 hour power reserve. It is made up of 445 pieces. It is related to the "[[Grande Complication]]" [[JLC 182]] movement, perhaps the most complex ever made to that point.

===== Applications =====
Jaeger-LeCoultre currently uses this calibre in the [[Jaeger-LeCoultre Duomètre à Chronographe]].

===== External Links =====
  * [[http://www.qpmagazine.com/media/38714/QP28_JLCDuo.pdf|A Twin Engined Chronograph: the Jaeger LeCoultre Duomètre]]


<WRAP ud ud_mov>

**Manufacturer:**
  * [[Jaeger-LeCoultre]]

**Description:**
  * [[Manual winding]] movement
  * [[Escapement]] Stone lever
  * [[Yoke winding system]]
  * [[Flat hairspring]]
  * Two independent [[barrel]]s
  * [[Incabloc]] [[shock protection]]
  * [[Screwed balance]] with gold weight screws
  * 445 components

**Functions:**
  * Hour/minute hands
  * [[Small seconds]]
  * [[Double barrel]] design with dual [[power reserve]] meters
  * Chronograph with hour counter, 30-minute counter, and 60-second counter
  * [[Seconde Foudroyante]]
  * Minute-unit indicator

**Data:**
  * 15 [[ligne]]s
  * D 33.7 mm, H 6.95 mm
  * 48 [[jewels]]
  * 21,600 A/h
  * Power reserve 50h

**Extras:**
  * Spot-polished top plate, sunburst Geneva stripes centered on the balance wheel, grained and angled levers

**Production period:**
  * Since [[2007]]
</WRAP>

{{tag>Movements Manual_winding_movements Chronograph_movements Double_barrel_movements Jaeger-LeCoultre_calibres Jaeger-LeCoultre_Duomètre_calibres Column_wheel_chronograph_movements}}