La cote des montres Jaeger Lecoultre Gyrotourbillon 600642H d'occasion
Prix des montres Jaeger Lecoultre Gyrotourbillon 600642H d'occasion
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C. Two-body, polished, inclined bezel, concave lugs, setting pushers in the band, transparent back with four screws.sapphire crystals..D. Four-tone, gray, silver and frosted crystal, the upper half with brushed silver chapter ring for mean time and equation of.time with radial black Arabic numerals, outer minute track, the transparent center exposing the equation of time mechanism.elliptical frosted crystal border, below the sector for the date with two retrograde hands with instantaneous exchange.occurring on the 16th, the lower half with aperture to view the tourbillon, sector for the perpetual calendar month indication.on the left, sector for power-reserve indication on the right. Blued steel épée hands, equation of time hand with gold sun tip.blued steel seconds hand fixed to the top pivot of the tourbillon carriage..M. Cal. 177, rhodium-plated, fausses cotes and oeil-de-perdrix decoration, 21,600 vibrations per hour, 112 jewels, two.barrels providing linear transmission of power, sapphire covers to reduce mainspring drag, perpetual calendar indicator.one-minute rotating spherical tourbillon carriage machined from a solid block of aircraft quality aluminum to reduce weight.two 14K gold screws for poising, jeweled suspension, inner titanium platform rotating once per 24 seconds (2.5 times per.minute), steel inserts for screw holes, free-sprung 14K gold balance and adjusting screws, lateral lever escapement, blued.steel Breguet balance spring with overcoil, beveled third wheel and beveled fixed inclined wheel for the tourbillon to rotate.around, shock absorbers on all axis pivots..Dial, case and movement signed. Diam. 43 mm. Thickness 15.3 mm.
