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Master Ultra Thin
Power Reserve

Stainless Steel - 39 mm - Automatic winding
With its clean lines and slender stainless steel case, this Master Ultra Thin Réserve de Marche watch houses ingenious fine watchmaking complications that are elegantly arranged on the dial.
Color and material variants
Overview

The sophisticated watchmaking collection

The Master Ultra Thin 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 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 watch 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.

Warranty and Care

Protect your watch

After-sales services
After-sales services
Discover our maintenance available services in order to take care of your watch or your Atmos.
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Up to 8 years of warranty
Up to 8 years of warranty
Discover the Jaeger-LeCoultre Care Program and extend your warranty up to 8 years.
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