Jaeger-LeCoultre enriches its Master Ultra Thin collection in 2025 with the new Master Ultra Thin Tourbillon Enamel, limited to just 50 pieces. Housed in an 18k pink gold case, it features an anthracite grey Grand Feu enamel dial decorated with a hand-guilloché sunray pattern. The dial’s intricate design requires remarkable skill: 180 perfectly straight and aligned rays, each created through six precise passes on a rose engine lathe, while the date sub-dial carries a contrasting circular guilloché texture. The enamel is then applied in five layers, each fired at 800ºC, to achieve depth and luminosity.
At the heart of this creation is Jaeger-LeCoultre’s expertise in the tourbillon, a complication it has refined since 1946. The watch is powered by the updated Calibre 978, an award-winning movement renowned for accuracy. Its tourbillon, weighing less than half a gram, is built with a titanium cage and a specially designed two-level hairspring that ensures regular oscillations for precise timekeeping.
This latest version is a showcase of Jaeger-LeCoultre’s dual strengths: artisanal craftsmanship and technical refinement. The interplay of guilloché and enamel catches the eye, while the calibre beneath demonstrates decades of research into precision. It is a piece that speaks softly yet confidently of the Maison’s mastery.