Master Ultra Thin
Moon
Master Ultra Thin
Moon
Right from their conception, certain watch parts are destined to become cult. There is no doubt that the Master Ultra Thin Moon attracts and holds all eyes. Thanks to its 39-mm diameter case in rose gold and its bezel set with diamonds, this timepiece does not go unnoticed. Its mechanical self-winding movement is sure to make your heart beat faster with a power reserve of approximately 70 hours. Equipped with a new barrel, escapement wheel and silicon anchor, the Jaeger-LeCoultre Caliber 925 accommodates 245 components. A new step has been taken in the world of ultra-fine complication watches.
Color and material variants





Overview
The sophisticated watchmaking collection
The Master Ultra Thin watch collection epitomises Jaeger-LeCoultre’s philosophy of uniting technical virtuosity with timeless aesthetics. It reimagines traditional complications with designs that feature rich, clean lines. The entire collection showcases our exceptional watchmaking savoir-faire.


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.


Made in our Manufacture
From its calibre to its case, every Jaeger‑LeCoultre luxury watch is designed, manufactured and assembled under one roof, at our Manufacture in the Vallee de Joux. Our obsession with quality is renowned as every Jaeger‑LeCoultre model undergoes strict “1,000 Hour Control” testing. This unique program provides internal certification tests that far exceed official chronometry tests.
It includes movement testing before and after casing and extends throughout assembly, according to conditions that match daily wear. A quality seal is engraved on the back of every watch once it meets our strict standards.