EL PRIMERO CHRONOMASTER OPEN
The Chronomaster Open unites in a spectacular fashion the most rigorous watchmaking tradition with bold contemporary design. This ZENITH model uncovers the very essence of time and reveals, in the opening of its dial, the 36 000 vibrations of its movement: the legendary El Primero. The aperture captures interest as much by the magic it emanates as by the curiosity it inspires. But make no mistake: the Chronomaster Open is first and foremost of technological prowess, a timepiece that is 100% technical and 100% passion.
The Chronomaster Open model leaves no-one indifferent. The open dial – a ZENITH creation – lets one see into the perfectly synchronized pulsations and the magic of the mechanism in what is today unanimously considered as the “best serial movement in the world” for its performance and its chronometric reliability. Its secret lies in its number of vibrations, which is 25% higher than in other movements on the market. Whereas other timepieces make 8 vibrations per second, the El Primero caliber makes 10 in the same time. Over and above the aesthetic success of this open-heart operation – the Open concept is a feat of amazing technical prowess: to make the regulating organ visible, it has been moved to 10 o’clock , at 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 weights with “Cotes de Geneve” guilloche work; revelation of the ZENITH star through skeleton work and tachimeter scale on the flanges that harks back to the chronograph used in the first automobile races. One can only admire the attention to the detail.
The Chronomaster Open displays an avant-garde design with highly finished features. This aspect is important in the choice of watch, one of the only pieces of jewelry worn by men, an accessory that identifies and highlights his personality. ZENITH communicates the image of a highly technical brand that is intended for connoisseurs of high-precision watchmaking.
Using the design codes of the past to interpret contemporary models, the Chronomaster Open is based on a century and a half of watchmaking expertise. The Open models exist in four different variations: a silver or a black sun-burst dial in an 18 carat rose gold case or in a rose gold and steel case. The markers and the tree hands for the hour, minutes and small seconds are faceted, rhodium-plated, and hand set. The central hands of the chronograph, the hand for the 30 minute counter and for the power reserve have a blued finish. The curve of the hands that decorate the dial is executed with precise handwork. The Chronomaster Open model belongs to ZENITH’S iconic family.