Jaeger-leCoultre Master Memovox - 1000 Hours Control Test; Technical Specifications; Movement Details

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“1000 Hours Control” test
Jaeger-LeCoultre submits all its watches to the stringent “1000 Hours Control”,
a unique battery of comprehensive and rigorous tests lasting a full 1000 hours.
The “1000 Hours Control” seal or legend placed or engraved on the back of your
watch certi es that the latter has undergone this programme of observation in
our laboratories and has successfully passed all the tests relating to regularity
of rate, temperature, atmospheric pressure, resistance to shocks and magnetic
 elds, as well as water-resistance trials. Your watch is thus capable of withstanding
the daily stresses and strains that await it when worn on your wrist.
The criteria of the “1000 Hours Control” programme considerably exceed the stand-
ards of of cial timing tests, which deal only with part of the movement.
Jaeger-LeCoultre tests not only the movement prior to its being cased up in the
watch, but also the watch as a whole.
MASTER MEMOVOX
Technical speci cations
- Automatic winding mechanical movement, Calibre 956.
- 28,800 vibrations/hour.
- Power reserve: approximately 45 hours.
- Water-resistant to 5 bar.
Movement
Jaeger-LeCoultre Calibre 956.