A recent feature for the El Primero, a stop-seconds mechanism now allows for precise setting. Measuring such a short fraction of time is already a feat, making it perfectly visible is even better! Besides, it is spectacular to watch!Īmong other notable features, the power reserve has been beefed up to 60 hours (versus 50h before), thanks to an optimised kinetic chain. That’s six times the speed of a normal chronograph hand. Taking full advantage of the 5Hz frequency of the El Primero (that beats at a rate of 10 vibrations per second), the central chronograph hand makes one turn in 10 seconds. The most visible upgrade is its ability to display 1/10th of a second. Originally presented on the occasion of the 50 th anniversary of El Primero in 2019 with the Chronomaster 2 limited editions, the El Primero Calibre 3600 chronograph is the most striking evolution of the movement. It is available in two different variations: matte white or matte black.Īs mentioned, besides this sportier look the new Chronomaster Sport also comes with a performance jump and an exceptional movement that renews the technical values that have forged the legend behind the El Primero and Zenith. Arranged in a V shape, they are paired with faceted hour markers filled with Super-LumiNova. The three overlapping sub-dials consist of the two chronograph totalizers (60 seconds and 60 minutes) and the running seconds. The dial of the Chronomaster Sport comes in Zenith’s signature tri-colour and tri-compax layout – with silver, anthracite and blue counters. But after half a century, it was time for a major performance jump with an evolution of the movement that takes full advantage of its 5Hz frequency, in order to measure and display the 10 th of a second. But the movement has also been updated in the frame of continuous optimization, in particular, by incorporating modern technologies to evolve in synchrony with the times. The re-industrialisation of the movement in 1987 (under the reference Calibre 400) was the occasion to introduce several improvements. In more than 50 years of history, the El Primero has evolved in many directions. Beyond its historical importance, El Primero’s longevity speaks for itself. Part of the trilogy of automatic chronograph movements that hit the market in 1969, it is the only one that is still produced to date. Presented in 1969, the Zenith El Primero has become an undisputed horological icon. Meet the new Zenith Chronomaster Sport, and don’t miss our video review above to see how it looks on the wrist. As 2021 kicks off, Zenith unveils a new sporty and technical iteration of the collection with a sharp new look outside and a significant boost inside. Today, it is the most emblematic expression of the iconic El Primero movement. More than 20 years later, this sports chronograph has become one of the brand’s key collections. It comes with a Book only, as pictured.The Zenith Chronomaster has spawned numerous versions and generations since it was originally presented at the 1994 Basel watch fair. It is in proper working order and keeping time. The clasp has some light marks, but nothing deep. The original strap has some staining on the underside, but the topside is in great shape with plenty of life left. The new strap was worn maybe twice and has no marks or stains. I did not attach the one side of the strap to the clasp so there aren’t too many marks from the clasp on it. It has a Brand New Zenith strap attached and the original strap is included. There are no deep scratches or dings on the case. This watch is in Near Mint Condition with only a few light marks from careful wear. The Zenith El Primero Chronomaster XXT Open Power Reserve has a 45mm Stainless Steel case, El Primero Automatic movement, Caliber 4021, Chronograph, Power Reserve indicator, Water Resistant to 30M, Glare Proof Coated Sapphire crystal, Exhibition back, Light Grey Open dial, on a Black Alligator strap with Stainless Steel Deployment clasp, Model Number 03.1260.4021
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