Increasing speed meant that the Zenith chronograph movements could accurately measure time within 1/10th of a second. To deal with the inevitable increased wear and tear they had to developed special lubricants that stay in the watch longer as well as increasing the power reserve to 50 hours. Zenith adapted their movement but increasing the speed at which it worked at, oscillating at 36,600 bph instead of the usual 18,800 bph which was the norm at the time. The Seiko ‘6139’ was discontinued in 1980 with the Calibre 11 being upgraded to a Calibre 12 within a year due to issues such as an overly strong mainspring and weak rotor. The brand did so in a way which has meant the ‘El Primero’ has out competed and out lived its rivals. Already later than many other brands, Zenith had to differentiate its calibre to stand out. A calibre which had involvement from brands such as Heuer, Breitling, Buren and Dubois-Depraz.ĭuring 1969, the production of these movements meant that automatic chronographs watches were readily available on the market. 1969 saw Zenith announce the El Primero in January (didn’t release until October), Seiko release the 6139 movement to the Japanese market in May with Heuer’s calibre 11 being released in August 1969. ![]() The title of ‘the first automatic chronograph’ is one that is fiercely fought over and has, historically, caused much contention among the watch world. ![]() El Primero proudly printed on the case back An achievement earned through over 300 years of learning from watch making tradition. The El Primero has the honour of being the most accurate series produced movement in the world. Zenith’s El Primero movement has provided a concrete foundation on which the brand has been able to build a rich history. At number 34, Rue des Billodes, Le Locle the manufacturer has been working tirelessly to perfect the art of time keeping to such a level of precision to earn 2,333 chronometry awards during their lifetime. We will be glad to answer your questions.Since 1865, a small Swiss town nestled with the valleys of Neuchatel has been producing on of the most famous movements ever made within the watch industry. If you have any questions, please contact us. This luxurious timepiece from the El Primero Chronomaster Grande Date collection has a chronograph, a second subdials, a 30-minute counter and the date display. The open back of the watch is something pleasant that gives you the chance to see the mechanism and captivated by its complexity. It is only available on very high quality watches where the components are carefully selected. The sapphire is an excellent product for dials, but a little more expensive to produce. The sapphire crystal is more scratch resistant and very transparent. This model is equipped with a sapphire crystal. Its dial markers and the hands are luminescent, so it is much easier to read the time even at night. So it is especially adapted for larger wrists or for people who are looking for this feature. Its 45mm diameter makes it rather large for a man. ![]() Its power reserve of approximately 50 hours even allows you to keep it on time without having to wear it daily. Like all automatic watches, this watch with its El Primero 4047 caliber is for watch enthusiasts who appreciate beautiful timepieces and like the genius of the original watchmakers. Our automatic watch Zenith El Primero Chronomaster Grande Date with its stainless steel strap and its silver dial is a wonderful high end watch made in Switzerland for men.
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