Master Ultra Thin
Tourbillon Enamel
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Jaeger-LeCoultre Calibre 978
MOVEMENT TYPE
Automatic windingFunctions
Date, Seconds, Tourbillon, Hour - MinuteThickness
7.1mmVibrations per hour
28800Frequency (HZ)
4Power reserve
45 hoursComponents
302Jewels
33Barrel
1
Personalise your watch
Master Ultra Thin
Tourbillon Enamel
CRAFTSMANSHIP
A DIAL ELEVATED BY THE METIERS RARES™ ATELIER SKILLS
Each one of the 50 pieces is embellished at the Atelier des Métiers Rares™, sublimated with different techniques: hand-guillochage reflecting light across the sunray pattern and Grand Feu enamelling for the anthracite grey colour.
1,080 GESTURES TO CREATE THE SUNRAY GUILLOCHAGE
The hand-guilloché pattern is a work of immense precision and skill: each of the 180 ‘sun rays’ required six passages of the hand-operated rose engine lathe. Guided only by the eye and hand, the master guillocheur must ensure that every line is absolutely straight, radiating out from the centre to the edges of the dial. The date sub-dial is also hand-guilloché in a circular pattern (known in French as azurage) to create a subtle texture that contrasts with the sunray.
GRAND FEU ENAMELLED DIAL
Once the guilloché work on the main dial is completed, the master enameller applies enamel in multiple layers, followed by firing at 800°C to create the desired intensity and depth of colour. Creating by testing in results – a lengthy process of iteration made necessary because the nature of Grand Feu enamel means that the outcome of firing is highly unpredictable.
CALIBRE
HARNESSING THE TOURBILLON EXPERTISE
The movement powering the Master Ultra Thin Tourbillon Enamel is the latest generation of Calibre 978, which won an international chronomety prize in 2009, the year of its launch. Calibre 978 has been Jaeger-LeCoultre’s mainstay tourbillon movement ever since, and received a comprehensive update in 2019 to harness new technology.
Calibre
HERITAGE
A LEGACY OF MASTERING THIN CALIBRES
Already renowned for its complicated pocket-watches, the new challenge of the twentieth century led Jaeger-LeCoultre to make one of the most prodigious collections of ultra thin calibres in watchmaking history.
FROM THE SAME COLLECTION
LA GRANDE MAISON
THE WATCHMAKER OF WATCHMAKERS
