Leggi la descrizione dell'esperto
Marca :
Jaeger-LeCoultre
Modello :
Gyrotourbillon
Categoria :
Periodo :
2000
ID Orologio :
55 / 75
Calibro :
177 c
Materiale della cassa :
Platino
Forma della cassa :
Rotonda
Con diamanti :
Sì :
Colore del quadrante :
Bicolore
Dettagli riferimento :
149 . 6 . 07 . .
Chiusura :
Chiusura a scomparsa
Diametro :
43 mm
Dimensioni :
43 mm
Spessore :
15. mm
Funzioni :
Calendario, Data, Riserva di carica, Tourbillon
Descrizione :
Property of a Japanese Collector. 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 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. C. Two-body, polished, inclined bezel, concave lugs, setting pushers in the band, transparent back with four. screws, sapphire crystals
