====== JLC 881 ======
The **JLC 881** is an [[automatic]] [[chronometer]] movement from [[Jaeger-LeCoultre]].

Introduced in [[1961]], the Calibre 881 was much more advanced than earlier Jaeger-LeCoultre automatic movements. No longer a [[bumper]] movement, Cal 881 features a full 360º winding system and, unlike many similar movements of the era, can wind in both directions. It beat at 19,800 vph, has a sweep second hand, and a date window.

The Calibre 881 was used in the famous [[Jaeger-LeCoultre Geomatic]] (ref E 398) and was submitted to [[COSC]] for [[chronometer]] certification. Jaeger-LeCoultre had earlier achieved chronometer certification with a descendent of their first automatic, [[JLC 476|P 476/3]].

===== Cal. 880 Family =====
Calibre 881 was part of a family of movements, including Calibres 880, 882, and 883. There are three main variants of this family 

  * The basic movements have a fixed stud carrier
  * Later Chronometer versions have a movable stud carrier
  * Some also came with a "Spirotor" regulator with no stud for the balance spring

  * Fixed stud carrier
    * K880 17 jewels, optional date
    * K880G 23 jewels, chronometer for Geomatic
    * K880S 23 jewels, hacking, optional date
  * Movable stud carrier
    * K880G 23 jewels, optional date, chronometer for Geomatic
    * K881S 23 jewels, date, hacking
  * Spirotor regulator
    * K882 17 jewels
    * K883 17 jewels, date
    * K883G 23 jewels, date, chronometer for Geomatic
    * K885 17 jewels, manual wind

===== External links =====
  * [[http://jlc.watchprosite.com/show-forumpost/fi-2/pi-5969083/ti-875793/s-0/|An interesting page of JLC history: Automatic watches]]


{{tag>Movements Automatic_movements Jaeger-LeCoultre_calibres}}