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Your search term 'Grande Complication 42.500' returned 2 results

» Grand Complication No. 42500 by A. Lange & Söhne

An inestimably precious junkyard “This watch,” Jan Sliva explains today, “unites a host of fascinating complications[…]

» The Jaeger-LeCoultre Duomètre à Quantième Lunaire

Therefore the watchmakers have come up with the so called Dual-Wing concept to bypass a common problem in mechanical watches: any additional complication reduces the power of the winding barrel thus depriving the precisely tuned regulation organ of a steady flow of energy from the winding barrel[…] … Hence the influence of any given complication to the long-term rate of a watch can lead to deviations in time measurement hardly acceptable in such a valuable timepiece[…] … This fact can be overcome by using a fully independent power source to run the complication, separating its power supply from that of the basic movement, which in turn is fed by its own winding barrel thus ensuring a constant flow of energy[…] … Therefore the dual-wing concept, first introduced in the Duomètre à Chronographe in 2007, is now incorporated in the new Duomètre à Quantième Lunaire leading to a tremendous increase of accuracy in complication movements[…] … Their utmost attention to such details proves that the specialists at Jaeger-LeCoultre have developed a dual-wing calendar-watch of exceptional characteristics, with levels of accuracy that until now could only have been reached by watches without complications[…] … With each new invention the Manufacture could build upon the know-how gained through the design and production of some of the most astounding movements in the history of Swiss watchmaking: the Gyrotourbillon I with its spherical tourbillon; the Master Minute Repeater with its unique sound system; the Reverso grande complication à triptyque, the most complicated swivel-watch; the Master Compressor Extreme LAB, the first watch running completely without lubrication; and the Hybris Mechanica à Grande Sonnerie, the longest sonnerie of all times[…] … For the newly developed dual-wing movement, Jaeger-LeCoultre has once again left the beaten paths in order to invent a completely new movement design that focuses on the issues of accuracy for mechanical watches with complications[…] … In a traditional complication wristwatch any function not constantly attached to the going train makes the watch’s rate deviate upon its activation: a chronograph as it is switched on, a repeater while ringing or even a calendar function that couples just once a day into the running movement – each leads to a drop in the amplitude of the balance wheel, and a deviation in timing, as they absorb power for their own requirements[…] … To bypass this problem, the Duomètre watches feature two independent watch-mechanisms within one calibre: one going train is serving the measurement of time and the other the operation of the complication – with both being synchronized through the jumping seconds hand mechanism, the so-called “Seconde Foudroyante”[…] … This shared regulating organ ensures chronometer-worthy precision without interruption as no complication is coupled into the gear train of the timing device[…] … With this year’s Duomètre à Quantième Lunaire, the Grande Maison presents a date mooncomplication in the dual-wing concept[…] … The moon phase and date The complication of the Duomètre à Quantième Lunaire shows on the one hand the most important calendar function – the date – and on the other hand the most romantic one: the age of the moon[…] … The handbevelled bridges, as well as the polished sinks distinguish between the standard watch mechanism and the date-moon-complication in the dual-wing concept: the bridges of the first are held in taut, straight shapes and the latter in arabesque motives[…]