Rolex Chronometer Appraisal

　　Introduction: The daily error must be meticulously verified by an official independent certification body over continuous15days and nights, and only brands that ultimately qualify are awarded a chronometer certificate, which is no small honour.

　　RolexChronometer

　　“Officially Certified Chronometer”(Superlative Chronometer Officially Certified)is botha Rolex watchmark and the official certification of precision, and is closely tied to the brand's intrinsic value, just like the inscription on the dial“Oyster”and“Perpetual”However, what is the significance of this quality hallmark?What is its origin?and why is it used to explain“Chronometer”concept?As is well known, all Oyster Perpetual watches today are chronometers, and the inscription on the dial“Officially Certified Chronometer”bears witness to this, while also symbolising the brand's relentless pursuit of exceptional precision timekeeping, enabling Rolex as early as the20early century to become a pioneer in precision watch development.“Ultimate”precision1951Official certification became a mandatory standard. This was a triumph for Rolex, because the brand had been producing officially certified chronometers since1927accounting for a proportion close to90%。

　　Meanwhile, every Rolex watch is accompanied by“Officially Certified Chronometer”red lacquer seal. However, when official certification became a sales standard, the brand's precision timepieces lost a key advantage. As competitors continued to advance, Rolex sought to“Certificate of Excellence”(certificates of superiorperformance)as a goal for identification. Under the old rules, if a movement's precision was certified as excellent during testing, it could obtain a certificate inscribed with“outstanding results”.1950In the early years, Rolex founder Hans·Wilsdorf(Hans Wilsdorf)remained undeterred in his determination to obtain“Certificate of Excellence”.1959Year1In that month, he wrote:“We have reached a point where we must obtain all‘Certificate of Excellence’!”He concluded by saying:“Only then will the reputation of Rolex continue to grow.”

　　Summary: With the establishment of the Swiss Official Chronometer Testing Institute(COSC),“Certificate of Excellence”it was finally1973discontinued in the year. This institution consolidated various official watch rating centres to establish new standards: movement tests would result in only two outcomes—meeting more stringent criteria than before, or failing. What remains unchanged, however, is that the title conceived by Rolex serves as both a symbol of the pursuit of excellence and a testament to the brand's position as a pioneer in the field of precision chronometry.

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　　Movement: ReplicaETA2836Movement, SwissETA2836movement, replica Rolex3135Movement

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