It is a story that begins in the early 1900s, when Edmond Jaeger challenged Swiss watchmakers to create the thinnest movements ever made. Only one accepted, Jacques-David LeCoultre. The challenge led to the creation of groundbreaking calibres, ultra-thin records, and ultimately, the partnership that formed Jaeger-LeCoultre.
Elegance in Its Purest Form
The Master Ultra-Thin 39mm Q1232510 is a quiet expression of perfection.
Its ivory dial is serene and timeless, inspired by the minimalist dress watches of the 1950s. Slim dauphine hands, elongated indices and balanced proportions create a sense of harmony that feels almost architectural.
The pink gold case gives the watch a warm, refined glow; luxurious without being loud, elegant without trying. At just the right thickness, it slides effortlessly under a cuff, as every true dress watch should.
Precision from the Vallée de Joux
Inside the slim case beats a meticulously crafted automatic JLC movement, assembled in the Maison’s historic workshop in the Vallée de Joux. Known as the “Watchmaker’s Watchmaker,” Jaeger-LeCoultre has produced over 1,200 calibres, many of them ultra-thin milestones — a legacy that lives on in this model.
Jaeger-LeCoultre has been creating ultra-thin calibres for more than a century, including the world’s thinnest mechanical movement in 1907.
