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Victory over Earth’s Gravity

In 1687, English scientist Isaac Newton formulated the law of gravity. Legend has it that the idea struck him when an apple fell from a tree under which he had been resting. While amusing, the challenges of gravity are no joke for watchmakers: it affects the precision of a movement, and devising solutions has been a pursuit of horologists for centuries.
Victory over Earth’s Gravity

The most famous answer came in 1801 with the tourbillon, invented by Abraham-Louis Breguet. Over the centuries, master watchmakers have developed other solutions, such as Jaeger-LeCoultre’s gyrotourbillon or the remontoir d’égalité.

 In 2008, Swiss manufacturer Zenith, renowned for its highly accurate movements or chronometers, which have won an incredible 2,333 awards, was also searching for answers to the question of how to minimize the effect of gravity on the regulating component of a watch movement. Its innovative escapement module, called Gravity Control, which took engineers and technologists seven years to develop, was inspired by marine chronometers. 

 In 2008, Zenith, renowned for its highly precise chronometers, which won impressive 2,333 prizes, sought to further minimize gravity’s impact on a movement’s regulating component. Inspired by marine chronometers, the engineers developed the innovative Gravity Control escapement, a module that took seven years to perfect.
Image from library
Image from library

These precision instruments had to withstand the constant motion of ships at sea—and, of course, a wrist is rarely completely still either. Seventeen years ago, Zenith introduced a gimbal (jointed) suspension that keeps the balance wheel and hairspring perfectly horizontal at all times. Unlike marine chronometers, however, the module had to be compact enough to fit in a wristwatch case. 

Over the years, the Gravity Control module has been continuously refined. The 2025 version occupies 70% less space than the original, now integrated into the El Primero 8812S hand-wound movement with a 50-hour power reserve. To celebrate its 160th anniversary, Zenith presents the exceptional Defy Zero G Sapphire. Featuring a skeletonized movement, a blue lapis lazuli dial, and a 46 mm sapphire case available in blue or transparent, this watch exemplifies the fusion of technical innovation and traditional watchmaking. Production is extremely limited, with only ten pieces of each version.
Victory over Earth’s Gravity

Where to buy?

Carollinum Boutique
Pařížská 11, Praha 1
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