Jaeger-LeCoultre Unveil Master Ultra Thin Tourbillon Grand Feu Enamel

Jaeger-LeCoultre’s Master Ultra Thin collection represents the quintessential contemporary dress watch.

The collection is enriched with a new interpretation of the Master Ultra Thin Tourbillon Enamel. With a dial in anthracite grey Grand Feu enamel enhanced by a hand-guilloché sunray pattern and set in a 18k pink gold (750/1000) case, the new watch is offered in a limited edition of 50 pieces.

The anthracite grey dial provides a dramatic backdrop for the tourbillon and the date display, and reflected light dances across the sunray pattern of the guillochage with every movement of the wrist. 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, making 1,080 lines altogether. Guided only by the eye and hand, the master guillocheur must ensure that every line is absolutely straight, evenly spaced and perfectly aligned, radiating out from the centre to the edges of the dial. In addition, the date sub-dial is hand-guilloché in a circular pattern (known in French as azurage) to create a subtle texture that contrasts with the sunray.

The movement powering the Master Ultra Thin Tourbillon Enamel is the latest generation of Calibre 978, which has become Jaeger-LeCoultre’s mainstay tourbillon movement since it was updated in 2019. Comprising 77 components, including a titanium cage, the tourbillon weighs less than half a gram. It is equipped with a flat, two-level hairspring designed with a specific curve at the attachment points to help ensure that the oscillations are as regular as possible, thus delivering a high level of timekeeping accuracy. The pink gold bridge is enhanced by High Watchmaking finishes, including bevelling, straight graining and drawn flanks, all meticulously executed by hand.

With its finely handcrafted anthracite grey dial and mechanically sophisticated calibre, the new Master Ultra Thin Tourbillon Enamel epitomises La Grande Maison’s philosophy of uniting technical virtuosity with enduring beauty and timeless aesthetics.