Off the Chain: The Zenith Defy Fusée Tourbillon

The fusée and chain mechanism has held its place in horological history since the 15th century as the equalizer which evened out the pull of the mainspring. Its purpose? To improve the precision of timekeeping throughout the entirety of a ...

Off the Chain: The Zenith Defy Fusée Tourbillon
The fusée and chain mechanism has held its place in horological history since the 15th century as the equalizer which evened out the pull of the mainspring. Its purpose? To improve the precision of timekeeping throughout the entirety of a ...