JLC 849
The JLC 849 is an ultra-thin watch movement from Jaeger-LeCoultre.
The 849 (and similar JLC 849RSQ) is an hand-winding movement. The JLC 849 is made up of 123 pieces and is 1.85 mm thick. It runs at 21600 vph, has 19 jewels, and a power reserve of 35 hours. It is closely related to the JLC 839, introduced in 1975, differing only by the addition of one jewel (at the lower second wheel pivot) and a redesign of some of the bridges.
The JLC 849 is used in the thinnest mechanical wristwatch currently available, the 4 mm Jaeger-LeCoultre Master Ultra Thin Jubilee.
The two versions of the JLC 849 differ greatly in layout and application. The JLC 849 is used in the round Master Ultra Thin line, while the JLC 849RSQ is a tonneau-shaped movement used in the Grande Reverso Ultra Thin SQ. The 849RSQ is also skeletonized and decorated; It has 128 pieces and is slightly thicker at 2.09 mm.
Applications
Jaeger-LeCoultre currently uses this calibre in 4 watches.
- Jaeger-LeCoultre Master Ultra Thin
- Jaeger-LeCoultre Master Ultra Thin 38
- Jaeger-LeCoultre Master Ultra Thin Jubilee
- Jaeger-LeCoultre Grande Reverso Ultra Thin SQ (JLC 849RSQ)
External links
- The Jaever-LeCoultre Master Ultra Thin: A Study in Simple Elegance
- Thoughts On The Jaeger-LeCoultre Master Ultra-Thin Jubilee (The Thinnest Mechanical Watch In The World)
- Jaeger-LeCoultre Master Ultrathin
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