Zenith Chronomaster El Primero Full Open
In this major new 2017 launch, the legendary El Primero reveals itself completely, thanks to its entirely open – and openworked – dial, enabling full visual appreciation of its high frequency.
Providing an unobstructed view of its legendary mechanism, the famous automatic Zenith Chronomaster El Primero “Full Open” is aptly named, since it can now reveal the heart of its performance and precision thanks to a dial that is now entirely open – and openworked.
To ensure a better understanding of the fundamentals governing its flagship Chronomaster collection, Zenith offers its legendary El Primero chronograph in three different versions: with an entirely solid (closed) dial, a half-open (Open) dial, and now an entirely open (Full Open) dial. The latter is the most modern and contemporary interpretation, representing THE major new launch of 2017.
Main benefit: this complete opening enables clients to grasp and visually appreciate the high frequency of the movement, the signature of the legendary El Primero integrated automatic column-wheel chronograph calibre with its 326 components (including 31 jewels), beating at the swift pace of 5 Hz (36,000 VpH) and thus capable of measuring and displaying the time with tenth-of-a-second precision. These attributes are inherited from its illustrious predecessor, the world’s most accurate series-produced chronograph developed by Zenith in 1969.
While the mechanism is now entirely revealed, there are nonetheless a few subtle nods to the historical version of the El Primero 1969: the date window of the 38mm version has been placed between 4 and 5 o’clock just like the original; and the famous blue color is perfectly identical to the historical version. Combined with the two other colors, anthracite and rhodium, the three galvanic tones make a perfect match serving to magnify the movement.
Three counters complete the picture: the 30-minute counter at 3 o’clock, the 12-hour counter at 6 o’clock, and the small seconds counter at 9 o’clock that notably serves to verify the smooth operation of the movement. A silver-toned inner bezel ring, a black and white minute circle, together with faceted luminescent hands, combine to ensure optimal legibility, without obstructing the view of these captivating inner workings, while the elegant transfer centered inside the sapphire crystal provides the Zenith signature touch.
In terms of the case, the design also reflects the famous historical case of the 1969 El Primero Chronograph. Redesigned and modernized in 2010, this case has become a staple, revisited in every diameter and embodying the quintessence of Zenith’s creativity and timeless classicism. The case-back is of course open with a sapphire crystal revealing a resolutely modern architecture.
Available in two 38mm and 42mm diameters, in steel or a two-tone version with steel topped by an 18K pink gold bezel, and fitted with an alligator leather strap (black for the steel variation and brown for the two-tone steel and pink gold version) or a metal bracelet, this imposing, sturdy and sophisticated chronograph catches the gaze and plunges it into a cutting-edge mechanism by Zenith. Over 50-hour power reserve. Water-resistant to 100 meters.