Jaeger-LeCoultre Reinterpret Master Grande Tradition Calibre 985…

Jaeger-LeCoultre continues its pursuit of precision in mechanics and aesthetics with three new interpretations of the Master Grande Tradition Calibre 985.

Two are cased in Platinum (950/1000) with an eye-catching blue dial, one with a polished bezel and one with a diamond-set bezel, and the third is cased in 18k pink gold (750/1000) with a brown dial. Developed in 2013, Calibre 985 unites a perpetual calendar and moon phase display with the fascination of a flying tourbillon equipped with a cylindrical hairspring.

A complex and sophisticated movement entirely developed and produced by Jaeger-LeCoultre, Calibre 985 is composed of 431 parts, of which the flying tourbillon alone comprises 83 components. Crafted in titanium, it weighs just 0.386 grams. The enhanced isochronism of the cylindrical hairspring made it the right choice for this movement, which delivers all the functions of a perpetual calendar, as well as a moon phase that will require no adjustment for 122 years.

On the reverse side of the watch, the sapphire crystal case back reveals the exceptional precision of the Haute Horlogerie finishes on the movement, including blued screws, sunrayed Côtes de Genève, snailing and hand-bevelling. The winding rotor in 22k rose gold (916/1000) is decorated with sunray engraving and a reproduction of the gold medal awarded to Antoine LeCoultre at the 1851 Great Exhibition in London for his development of precisely calibrated stamping, cutting machines and mechanical lathes which allowed the components’ interchangeability.

The warm glow of the pink gold case is complemented by the soft brown of the corresponding dial, while the cool tones of the platinum case create a striking contrast with the rich blue dial, enhanced by the high polish of the bezel. On the second platinum-cased model, the colour contrast is amplified by diamonds. The bezel is set with 72 baguette-cut diamonds, making a total of approximately 3.4 carats – the subject of 15 hours of gem-setting work in the Manufacture’s own Métiers Rares™ atelier.

The outstanding Master Grande Tradition watch calibres, each comprising multiple complications and several hundred components, epitomise La Grande Maison’s spirit of innovation and devotion to precision. This complexity is complemented by remarkable precision in the decoration and finishing of both movement components and habillage. The new dials of the Master Grande Tradition Calibre 985 are elegant and pure, while the sapphire crystal case back offers a glimpse into true watchmaking mastery.

Technical Specifications:

MASTER GRANDE TRADITION CALIBRE 985

Case : Platinum (950/1000)

Dimensions : 42mm diameter x 13.27 mm thick

Calibre: Automatic, Jaeger-LeCoultre Calibre 985

Functions : Hours, minutes, cylindrical flying tourbillon, perpetual calendar, (Day, date, month, year), moon phases, Night & Day

Frequency: 28,800 vph

Power reserve: 45 hours

Dial: Blue

Caseback: Sapphire crystal

Water resistance: 5 bar

Strap: Blue alligator with small scale alligator lining, pin buckle