Jaeger-LeCoultre Calibre 101 Mechanical Movement's 80th Anniversary

Jul 17, 2009
The history of the modern Calibre 101 mechanical movement dates back to 1929, the year when the first movement of the kind was created.

Currently, this movement has the same name. Improved over the years, it includes up-to-date, extremely adorned interpretations.

The Jaeger-LeCoultre Caliber 101 has been the smallest mechanical movement in the world since it was unveiled, meaning for 80 years.

The annual output of these tiny movements is limited to 25 pieces only. The dimensions of the movement in question are 14 mm X 4.8 mm X 3.4mm: length, width and thickness respectively.

The movement is composed of 98 parts meant to make up its current iteration. The latest versions of the movement are able to incorporate even more parts, while the original 1929 Jaeger-LeCoultre Calibre 101 movement comprised 78 parts only. Its ultra low weight is about a gram.

The Calibre 101 is a hand-wound mechanical movement set with 19 precious stones - the number that seems unbelievable for such a small space. Another distinctive feature of the movement is its rich embellishment, embracing hand etching on the 18k gray gold bridges and polished finishing on all surfaces.

Thin and long in its exclusive shape, this movement is used in a series of different high-jewelry timekeeping companions for women. The Jaeger-LeCoultre Caliber 101 also features extremely small blued steel screws, that seem large against its overall background.

Very hard to create, these movements are manufactured in limited series and integrated into the most luxurious watches for ladies.


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