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Close 50m/165ft Case Back Transparent Band Material Alligator/Crocodile Leather Color/Finish Brown Clasp Tang Buckle Movement Automatic An automatic/self-winding movement is powered by a thin spiral torsion spring, called the mainspring, which is housed in an enclosed barrel inside the movement. The energy produced from the wound spring drives the movement functions. An automatic watch has a weighted rotor mounted on a pivot to the back of the movement, and the rotor is connect to the mainspring through a series of gears. The natural motion of the wearers wrist will cause the rotor to spin, which in turn will automatically wind the mainspring. Please note: An automatic winding watch which has completely wound-down or is at the end of its power reserve requires manual winding. Manually winding an automatic watch ensures that the watch is at full power-reserve when first worn, and as long as the watch is in motion thereafter it will remain fully wound, ensuring that when the watch is removed it will run the specificed power-reserve duration. Close Complications GMT Time Zone, Power Reserve Indicator, World Time

• Brushed & polished 18kt rose gold case.
• Silver dial with a very fine sun-ray finish.
• Polished hour & minute hands with thin strip of luminous fill.
• Blued steel central seconds hand.
• Applied polished hour markers.
• Luminous dot 12/3/9 markers.
• Silver dial flange with fine printed minutes/seconds track.
• Functions:
• GMT/World-timer:
• independent hour & minute sub-dial at 6 o’clock, with a day night indicator at 9 o’clock..
• With 24 city locations, easily adjusted via the crown at 10 o’clock position.
• Datesub-dial at 2 o’clock.
• Power reserve indicator at 10 o’clock.
• Jaeger LeCoultre caliber 939AA, beats at 28,800 vph (4Hz), contains 34 jewels & has an approximate power reserve of 70 hours.

Alternate model # q4122520

Mens Jaeger LeCoultre 4122520 Master Control Geographic 40mm Watch