Important Modern & Vintage Timepieces

Hong Kong, Jun 22, 2013

LOT 623

Jaeger-LeCoultre Gyrotourbillon1 Platinum Jaeger-LeCoultre, Gyrotourbillon 1, No. 55/75, Ref. 149.6.07.S. Made in a limited edition of 75 pieces in 2008. Exceptional and highly complicated, large, waterresistant, 8-day going platinum wristwatch with visible Jaeger- LeCoultre caliber 177 with inclined lightweight two-cage multi-axis spherical tourbillon, two barrels with sapphire covers, equation of time, perpetual calendar with retrograde month indication, leap-year indication and patented instant date display by means of two retrograde hands, power reserve indication, 1000 Hours Control and a Jaeger-LeCoultre platinum deployant clasp. Accompanied by the original fitted box, guarantee, certificate, Glass, instruction booklet, booklet.

C. Two-body, polished, inclined bezel, concave lugs, setting pushers in the band, transparent back with four screws, sapphire crystals D. Multi-tone, grey and silver, the upper half with brushed grey 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, 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 epée hands, equation of time hand with gold sun tip, blued steel seconds hand fixed to the (detail of the movement) top pivot of the tourbillon carriage. M. Cal. 177, rhodium-plated, fausses cotes and oeil- de-perdrix decoration, 21,600 vibrations per hour, 117 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 over coil, 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.mm Property of a Japanese Collector