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Jaeger-LeCoultre - Duomètre Sphérotourbillon wins an award at SIAR, Mexico

Best Horological Value prize for this remarkable complication watch

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22 October 2012

Jaeger-LeCoultre's Duomètre Sphérotourbillon won the 'Best Horological Value' award at SIAR, Mexico. This new 2012 watch is based on the Dual-Wing concept, in which the tourbillon revolves around its axis in a titanium cage, and also revolves around a second axis at an inclination of 20°. The combination of these two movements enables the watch to remain unaffected by gravity, in whatever position it is, improving accuracy. The beauty of this mechanism has to be seen to be believed. The cylindrical balance spring resembles a tiny pulsating heart. Take a look at the video further down this page.

The watch also features a precision adjustment system, in which small seconds can be reset using a push-piece at 2 o'clock that uses the flyback system to reset seconds. What happens is that the small seconds hand flicks back to zero without this stopping its operation. This allows absolute accuracy in setting the watch.

The watch is powered by the Calibre 382 movement, with a power reserve of 50 hours. It has 460 parts (in addition to the Sphérotourbillon's 105 parts), and two mainspring barrels, one that powers the tourbillon, and one for the overall watch functions. The dial is fairly complex, with a time display, date display just outside the time, two power reserve indicators labelled Duometre and Spherotourbillon, and a second time-zone in 24-hour format. But it is also clear, with everything helpfully labelled, and a white background colour that sets off the gold and black detailing to perfection. Hour and minute hands are of the leaf type, while small seconds is a baton-type hand with pear-shaped counterweight, in blued steel.

All this is housed in an 18-carat pink gold case, 42 millimetres in diameter, 14.1 millimetres thick, with sapphire crystals on the front and caseback. The strap is in hand-sewn crocodile with an 18-carat pink gold buckle. The watch reference is 605 25 20.

SIAR, the Salón Internacional Alta Relojería México, is the largest high-end watch show in Latin America. It was held in Mexico City, from 2 to 4 October 2012.