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Master Geographic

Jaeger LeCoultre Master Geographic

Tribute to watchmaking tradition, emblematic function of the Manufacture Jaeger Lecoultre, the Master Geographic, in a harmonious dial, displays two time zones incorporating summer time.

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Each watch in the collection "Master Control 1000 hours" is subjected to a testing program 1000 hours (6 weeks). These tests relate to comprehensive controls around the smooth running, temperature, pressure, impact resistance, sealing and magnetic fields. The watch is well tested in multiple positions that correspond to the most common positions of the watch in his future life. These tests are performed on the movement before mount then, on the watch when she is assembly.

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Reference : 1428421

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Case :

stainless Steel case
diameter : 39mm
thickness : 11,8mm
sapphire crystal with anti-reflective treatment on the both sides
transparent back
water resistance : 5 bar (50 meters)
silvered sunray-brushed
luminescent numerals and hour-markers
strap : black alligator leather
double folding buckle 16.0 mm - stainless steel

Movement :

Jaeger LeCoultre 939A calibre
self-winding (automatic)
balance and balance-string : adjustment by micro screws embedded in the circular balance wheel
balance wheel on shock absorber system
bridges and oscillating weight (rotor) decorated
28 800 vibrations per hour
310 pieces
34 jewels
1 barrel
height : 4,9mm
power reserve : 43 hours
oscillating weight with gold segment

Functions :

hour, minute
seconde
date
power reserve indicator
24 hours display
second time-zone
24 time-zones
stop seconde function

Photo de Montres