Zenith Defy El Primero 21 Zenith is taking its place in the third millennium with a new 100th of a second chronograph movement.

See the Defy El Primero movement which flaunts standout performance: a COSC-certified in-house movement driving a hundredth of a second display by means of a central hand, with its unique and exclusive dynamic signature of one rotation per second. 

Its double-chain structure is based on two regulators, made of Carbon-Matrix Carbon Nanotube composite, a patented new material that is insensitive to magnetic fields and temperature gradients to a degree well above existing norms.


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