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El Primero Chronomaster Open Power Reserve

Zenith 2011

Zenith: El Primero Chronomaster Open Power Reserve/2011

The Chronomaster Open uncovers the very essence of time and reveals, in the openings on its dial, the 36,000 vibrations of its movement: the legendary El Primero.

The open dial of the Chronomaster Open model lets one see into the perfectly synchronized pulsations and the magic of the mechanism. The Open concept is the realization of technical prowess: to make the regulating organ visible, it has been moved to 10 o’clock, on the edge of the movement.

The great watchmaking tradition

Everything here evokes the great tradition of watchmaking: a column-wheel Chronograph mechanism; a power reserve indicator; a rhodium-plated plate, circular- graining and chamfered bridges; strokes drawn on the hammers, levers and conveyors; oscillating weight with "Côtes de Genève" guilloché work; revelation of the Zenith star through skeleton work and tachometric scale on the flanges that harks back to the chronographs used in the first automobile races.