Rolex watches technology - officially recognized chronometer

Rolex watches technology - officially recognized chronometer "Officially recognized chronometer" (Superlative Chronometer Officially Certified) both Rolex watch tag, but also watch the official certification of accuracy, but with the intrinsic value of the brand is closely linked, as also engraved in the table plate "Oyster" and the words "Perpetual" the same. However, what is the significance of this quality mark? Its one of the origins of why? And why would this explain the concept of "chronometer" is? Rolex watches technology - officially recognized chronometer As we all know, now all the Oyster Perpetual watches are chronometer watch, "chronometer officially recognized" words have confirmed this point, but a symbol of the brand on the precise timing of the relentless pursuit of excellence, so on the surface of Rolex As early as in the early 20th century, has become a pioneer in the development of precision watch. Rolex watches technology - officially recognized chronometer In 1910, one of Rolex watches in Switzerland to become its first official certification to obtain meter watch chronometer. In 1914, a similar Rolex watches have also been famous British Jiao Observatory (Kew Observatory) awarded the "A-class" chronometer certification. Brand in the pursuit of precision timepieces during various important moments are sufficient to explain the title of this famous one in meaning, and until about 1957, this title will eventually be finalized. From the beginning, only "Chronometer" word, the "Officially Certified Chronometer", the last named "Superlative Chronometer Officially Certified". Rolex watches technology - officially recognized chronometer The definition of chronometer Let's revisit the definition of precision timepieces. The so-called precision timepieces, is the official certification upon highly accurate meter, timing and exact time daily deviation of less than a few seconds. Currently, the men's mechanical watch movement is limited to a maximum deviation of daily four seconds slow or fast six seconds, the exact rate of 99.993%! This rigorous testing accuracy must be approved 15 days and nights through independent agencies. Only meet the standards of the movement before the Swiss chronometer testing center (Swiss Official Chronometer Testing Institute, COSC) issued chronometer certificate. Official certification Official chronometer certification itself will have meaning, why specifically marked? Historically, the naming rules for "chronometer" varies, but the former official definition is "sufficient to obtain an official rating certificate precision watch." Thus, the watchmaker self as chronometer certification awarded, and This process is obviously the risk of fraud. To ensure quality, regardless of the cost and the required Rolex chronometer extra time, and choose to watch by official certification. To mark this distinction, the words engraved brand in the late 1930s to dial from "Chronometer" to "Officially Certified Chronometer". Rolex watches technology - officially recognized chronometer "Extreme" accuracy In 1951, the official certification to become a mandatory standard. This is a victory for the Rolex concerned, because the brand manufacturer of precision when it accredits official count since 1927, the ratio of close to 90%. Meanwhile, each costing Rolex watches are attached engraved "Officially Certified Chronometer" the word red paint seal. However, when the official certification to become standardized sales also contributed to the brand's chronometer lose an important advantage. With the continuous progress of competitors, Rolex and then to fight for the "excellent performance certificate" (certificates of Superior Performance) target identification. Under the old rules, the movement can get excellent accuracy of the certified written "outstanding achievements" in the test certificate. In the early 1950s, Rolex founder Hans Wilsdorf (Hans Wilsdorf) to obtain "superior performance certificate" determination unabated. January 1959, he wrote: "We have reached a point that must be made ​​for all 'superior performance certificate'!" He concluded:. "So to the growing popularity of Rolex." Eventually, an important innovation to make this goal a reality. In 1957, Rolex introduced a new generation of superior performance chronograph movement, called the 1500-type movement, assembly gold trimming screw balance wheel (now replaced with star spinner nut). Its precise timing results to obtain a certificate of higher than standard triple. To demonstrate the extraordinary qualities, Rolex and more conceived "Superlative Chronometer" concept. Tribute to DAY-watch This name was later seamaster aqua terra also added to the dial lettering, the combination of a world-famous "Superlative Chronometer Officially Certified". Although there is no clear note of the date, but I believe the words of this update first appeared in 1957 in the prestigious DAY-dial, and the table was available a year ago. With the Swiss chronometer testing center (COSC) establishment of "excellent performance certificate" was finally deactivated in 1973. This organization brings together various official watch rating center, jointly set new standards: the results of the test are seamaster planet ocean only two movements, to achieve more stringent criteria than in the past or not compliance. However, the same is a symbol of excellence in the pursuit of this title is both conceived Rolex is the brand to become a pioneer in the field of precision timing witness.