====== Jaeger-LeCoultre Master Control ======
{{wst>image_cr|Jaeger-LeCoultre|Master Ultra Thin|Jaeger-LeCoultre Master Ultra Thin|300px}}

**Master Control** is a watch model range by [[Jaeger-LeCoultre]].

===== An unusually hard test =====
With the presentation of the //Master Control// series the [[manufacture]] Jaeger-LeCoultre took an important step to the high quality of their products, both in terms of their own production and also to unmistakably underline the image of the brand.

Each watch provided with this designation is, prior to delivery to the customer, stringently and extensively checked for 1,000 hours, and this means that it has to undergo checks that are sharper than those laid down in the [[chronometer certification]] guidelines and requirements. The label "1000 Hours Control" and the engraving on the back of the models confirm that they have successfully passed all tests for accuracy, resistance to temperature and barometric pressure changes, vibrations and [[anti-magnetic|magnetic fields]] as well as [[water resistance]].

And one most important difference to the [[chronometer]] certification by the [[COSC]] has to be added while here only the bare movement is tested for accuracy, the //Master// test concerns the finished watch which the customer finally receives.

{{wst>image_cl|Jaeger-LeCoultre|Master Tourbillon}}

==== Models of the ''Master Control'' series ====
  * Master Control - base model with [[self-winding]] movement
  * [[Jaeger-LeCoultre Master Ultra Thin|Master Ultra Thin]] - ultra flat [[manual winding]] model
  * [[Jaeger-LeCoultre Master Memovox|Master Memovox]] - [[alarm function]]
  * [[Jaeger-LeCoultre Master Grand Réveil|Master Grand Réveil]] - [[perpetual calendar]] and [[alarm function]]
  * [[Jaeger-LeCoultre Master Eight Days Perpetual|Master Eight Days Perpetual]] - [[perpetual calendar]] and [[8 days movement]]
  * [[Jaeger-LeCoultre Master Calendar|Master Calendar]] - day of week, month, date and [[moon phase]]
  * [[Jaeger-LeCoultre Master Tourbillon|Master Tourbillon]] - [[tourbillon]] and [[dual time zone]]
  * [[Jaeger-LeCoultre Master Geographic|Master Geographic]] - [[world timer]]
  * [[Jaeger-LeCoultre Master World Geographic|Master World Geographic]] - [[world timer]] and [[dual time zone]]

==== The series ''Master Compressor'' ====
Also the // Master Compressor // series which focuses on sporty watches is subjected to the inexorable 1000 hours test. For more information see 

  * [[Jaeger-LeCoultre Master Compressor|Master Compressor]]

===== Literature =====
  * [[Das ZEITGEFÜHL-Uhrenbuch]]; Author [[Gerd-Lothar Reschke]]; ISBN 3-938607-61-0

===== Master Control (base model) =====
{{wst>image_cr|Jaeger-LeCoultre|Master Control}}

A watch with classic elegance, in the current version fitted with the new [[self-winding]] movement [[JLC 899]] with lubrication free [[ceramic]] ball bearings and a [[balance wheel]] with variable inertia.


<WRAP ud ud_mod>

**Movement:**
  * [[Self-winding]] [[manufacture]] movement [[JLC 899]] (before JLC 889/2), 28,800 A/h
  * Weight segment in 22ct gold
  * 43 hours power reserve
  * 219 components
  * 32 [[jewels]]

**Case: **
  * 18ct [[red gold]] or [[stainless steel]]
  * Ø 40 mm, H 8.5 mm
  * [[Domed]] [[sapphire crystal]] with [[anti-glare treatment]]
  * [[Sapphire crystal]] caseback
  * [[Waterproof]] to 50 m

**Dial:**
  * Silvered, [[solar grinding]], gilded or [[rhodinated]] numerals and indexes

**Functions:**
  * Hours, minutes, [[central seconds]], date

**Bracelet: **
  * Alligator leather strap with [[double folding clasp]] or stainless steel bracelet
</WRAP>

{{tag>Watch_models Jaeger-LeCoultre_models}}