Jaeger LeCoultre E859 Vintage Memovox Polaris EXCELLENT w. Extract (27473)

27473 Jaeger LeCoultre Memovox Polaris E859, the stainless steel compressor case is in excellent condition and does not appear to have been polished in the past, Jaeger LeCoultre strap and buckle, Jaeger LeCoultre Caliber 825 movement, original black dial with luminous Arabic numerals & hour markers, the tritium luminous on the dial, rotating ring, and hands are original and appear to be unaltered (though their colors appear different), date at 3 o'clock, alarm, bi-directional rotating bezel operated with 3 o'clock crown, water resistant to 200 meters, Excellent Condition with Extract from the Jaeger LeCoultre archives confirming the production date in 1968 as well as a $1731 service receipt (which took over a year) and pouch from Jaeger LeCoultre.


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More about Jaeger LeCoultre E859 Vintage Memovox Polaris EXCELLENT w. Extract

This is a vintage c. 1968 stainless steel Jaeger-LeCoultre Memovox Polaris, E859. It has the patented Piquerez Compressor system - a triple back consisting of a bronze inner case that provided the resonance of the alarm, a waterproof back, and a snap-on outer back with 16 holes to transmit the sound. It includes a center sweep seconds hand with a luminous arrow tip, and an inner bi-directional revolving bezel calibrated for 60 minutes, and operated by the central crown. The crown at 2 activates the central revolving alarm dial; all three crowns are original. The 41.5mm diameter solid sharp two-body case, chamfered bezel and downturned lugs are polished. The dial is black with luminous dart baton index markers, luminous steel baton hands, and Arabic numerals at three of the quarter hours. It has an inner bi-directional revolving disk with minute divisions for the alarm, and outer dot minute divisions with 5-minute/ seconds markers. There is a date aperture window at the 3 o'clock position, and the 17.2mm thick case, dial, and movement are all signed.

The automatic self-winding Jaeger-LeCoultre caliber 825 movement is rhodium-plated, with fausses cotes embellishment. It's constructed with 17 jewels, 241 components, and a straight-line lever escapement. It is equipped with a hammer rotor, a monometallic balance that's adjusted for temperature and 5 positions, and a shock absorber mechanism. It includes a self-compensating flat balance spring, and an index regulator.

1714 examples of the Memovox Polaris, were made between 1965 and 1970; it is Jaeger-LeCoultre's best-known diving watch. In 1966 it was fitted with a new system to increase the volume of the alarm under water - a triple case back that prevented the sound from being damped by the diver’s rubber suit. This watch, manufactured in 1968, was fitted with the patented Compressor triple back. Jaeger-LeCoultre alarm watches still use a similar alarm system.