Jaeger-LeCoultre Master Ultra Thin 1907 Watch Review

Jaeger-LeCoultre sit within the greater echelons of luxury horology, an authoritative brand, revered among watch connoisseurs and aficionados. Through the years Jaeger-LeCoultre have created eye-wateringly exquisite watches, an obvious task includes inventing the littlest mechanical movement available in 1929 and since striving to interrupt the limitations and make watches that push the boundaries of the items was thought possible of the watch.

JLC has introduced the Jaeger-LeCoultre Master Ultra-Thin 1907 early this year. With a little more than 4 mm tall it is possibly fragile and even perhaps “scary” thin to put on. The Jaeger-LeCoultre Master Ultra-Thin 1907 may be the second iteration of the ultra-thin watch in the Grande Maison from the Vallee de Joux. The brand new Master Ultra Thin 1907 is available in a 39mm pink gold case that’s just 4,05mm thick.


The Jaeger-LeCoultre Master Ultra-Thin Jubilee was the slimmest watch on the planet during the time of introduction. Now it’s been surpassed by Piaget’s Altiplano 38mm 900P. So even though the latest Master Ultra-Thin 1907 isn’t the world’s slimest watch, having a height of 4.05 mm was very thin.

Inside ticks the world’s slimest by hand wound movement, Jaeger-LeCoultre calibre 849. It comprises 123 parts and it is just 1,85mm tall. To compare, have a ruler and appearance his thin 2mm is. The movement is even thinner, so when fully wound it features a power reserve of 35 hrs. I believe that’s spectacular!

To help keep the case slim, JLC elected for any so-known as knife-shape case. Which means its thickest part (if you’re able to call 4.05 mm thick) consists of the movement, the (snap-on) case back and sapphire crystal. The case back is solid, because adding a sapphire pane into it, with immediately boost the thickness. The part round the case is thinner and accustomed to screw the lugs onto. The case is shackled by the wrist having a glossy brown alligator strap, with no visible stitching, along with a pink gold tang buckle.


The dial is whitened having a carefully grained surface, featuring printed minute dots, stick hour markers, with double stick markers at 12, 3, 6 and 9 o’clock. Careful analysis choose printed markers is straightforward: applied markers would want additional height (the hands might not touch the markers) which could be from the whole idea of the watch. The hands are extremely-known as dauphine hands, and typical for JLC, one for reds is sandblasted (or micro-blasted, hence not shiny) as the partner is polished.

Around the wrist the Jaeger-LeCoultre Master Ultra-Thin wears fantastically comfortable. It’s very light and ultra-thin. One factor that slightly bothered me, would be that the lugs aren’t bend downwards, and due to the tips could be a little sharp for the shirt, particularly when the cuff is a little tight.


Concluding, this ultra-thin, uber-stylish beauty is an ideal classic dress watch. Despite a less formal attire it appears excellent. The pink gold case and hands possess a lovely warm glow which offsets beautiful from the carefully grained whitened dial. Because the only watch that’s thinner, Piaget’s Altiplano 38mm 900P, isn’t a classic dress watch, this JLC is most likely the slimmest classic dress watch available on the market. It sells just for over € 15.000 Pounds (including tax).

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