SJX Watches
Hands On: Jaeger-LeCoultre Gyrotourbillon à Stratosphère
A tourbillon within a tourbillon, itself within yet another tourbillon. The Master Hybris Inventiva Gyrotourbillon à Stratosphère is Jaeger-LeCoultre’s sixth-generation multi-axis tourbillon, 22 years after the first Gyrotourbillon launched in 2004. The revised tourbillon architecture now covers close to 100% of possible positions in space to dilute the effects of gravity across nearly all possible orientations. But is it a genuine precision instrument, or an exploration of the limits of contemporary mechanics? Evolution or revolution? The calibre 178 that powers the Stratosphère builds on more than two decades of research into multi-axis tourbillons, during which Jaeger-LeCoultre (JLC) has explored variables such as axis multiplication, different hairspring geometries, miniaturisation, and new forms of energy management. This logical evolution of the Gyrotourbillon concept remained theoretical until recently. “Its realisation has only been possible thanks to the current maturity of the Manufacture’s expertise and technologies – it would have been difficult to envisage just a few years ago,” notes Takahiro Hamaguchi, Product & Innovation Director at JLC. This capability also stems from the brand’s internal structure, which enables the conception and production of a movement from scratch, and is reflected in the new Hybris Inventiva line, which will grow into a showcase of watches that isolate a single innovative complication developed through multi-year inte...
