![Rolex history for you to discover: 100 years ago, in 1914, the Kew Observatory in Great Britain granted a “Class A” certificate to a wristwatch for the very first time. – Watch-Insider.com Rolex history for you to discover: 100 years ago, in 1914, the Kew Observatory in Great Britain granted a “Class A” certificate to a wristwatch for the very first time. – Watch-Insider.com](https://watch-insider.com/wp-content/uploads/2014/07/Kew_Certified_Rolex_Wristwatch_Chronometer.jpg)
Rolex history for you to discover: 100 years ago, in 1914, the Kew Observatory in Great Britain granted a “Class A” certificate to a wristwatch for the very first time. – Watch-Insider.com
![Rolex history for you to discover: 100 years ago, in 1914, the Kew Observatory in Great Britain granted a “Class A” certificate to a wristwatch for the very first time. – Watch-Insider.com Rolex history for you to discover: 100 years ago, in 1914, the Kew Observatory in Great Britain granted a “Class A” certificate to a wristwatch for the very first time. – Watch-Insider.com](https://watch-insider.com/wp-content/uploads/2014/07/First-precision-certificate_1910.jpg)
Rolex history for you to discover: 100 years ago, in 1914, the Kew Observatory in Great Britain granted a “Class A” certificate to a wristwatch for the very first time. – Watch-Insider.com
![Rolex Ref. 6210 'Kew A Certificate' First Series Rolex, 'Oyster, Observatory Chronometer, Kew A Certificate', movement No. 4157, case No. 97476, Ref. 6210. Made in only 24 examples in 1954. Very fine, Rolex Ref. 6210 'Kew A Certificate' First Series Rolex, 'Oyster, Observatory Chronometer, Kew A Certificate', movement No. 4157, case No. 97476, Ref. 6210. Made in only 24 examples in 1954. Very fine,](https://antiquorum-swiss-assets.s3.us-west-2.amazonaws.com/images/249/lots/108/108.jpg)
Rolex Ref. 6210 'Kew A Certificate' First Series Rolex, 'Oyster, Observatory Chronometer, Kew A Certificate', movement No. 4157, case No. 97476, Ref. 6210. Made in only 24 examples in 1954. Very fine,
![Rolex, the World's Largest Manufacturer of Chronometer-Certified Wristwatches, Celebrates the Centenary of the First Chronometric Certified Wristwatch Rolex, the World's Largest Manufacturer of Chronometer-Certified Wristwatches, Celebrates the Centenary of the First Chronometric Certified Wristwatch](https://4.bp.blogspot.com/-SM-cc03jVu4/U571F3aVg2I/AAAAAAAA8OY/DWBoOxtuFq8/s1600/1914_Kew_Certificate.jpg)
Rolex, the World's Largest Manufacturer of Chronometer-Certified Wristwatches, Celebrates the Centenary of the First Chronometric Certified Wristwatch
![Rolex history for you to discover: 100 years ago, in 1914, the Kew Observatory in Great Britain granted a “Class A” certificate to a wristwatch for the very first time. – Watch-Insider.com Rolex history for you to discover: 100 years ago, in 1914, the Kew Observatory in Great Britain granted a “Class A” certificate to a wristwatch for the very first time. – Watch-Insider.com](https://watch-insider.com/wp-content/uploads/2014/07/1914_Rolex-Kew_Results-416x590.jpg)
Rolex history for you to discover: 100 years ago, in 1914, the Kew Observatory in Great Britain granted a “Class A” certificate to a wristwatch for the very first time. – Watch-Insider.com
![Cool Rolex of the Day: 6210 Oyster Perpetual Observatory Chronometer, 34mm, 1 of only 24 "Kew A" Rolexes in this size. Circa 1954 : r/rolex Cool Rolex of the Day: 6210 Oyster Perpetual Observatory Chronometer, 34mm, 1 of only 24 "Kew A" Rolexes in this size. Circa 1954 : r/rolex](https://external-preview.redd.it/cIRTdiyYcEfsc52Qr_sYcy4l6mVxMWjNekquxl4h5ec.jpg?auto=webp&s=680a3bc8442b259c48b5a9cab8575c8d546432cf)
Cool Rolex of the Day: 6210 Oyster Perpetual Observatory Chronometer, 34mm, 1 of only 24 "Kew A" Rolexes in this size. Circa 1954 : r/rolex
![Bonhams : Rolex. A very rare stainless steel manual wind bracelet watch with Kew Certification and 'Especially Good' result Oyster Speedking 'Kew A Certificate', Ref: 5056, Circa 1947 Bonhams : Rolex. A very rare stainless steel manual wind bracelet watch with Kew Certification and 'Especially Good' result Oyster Speedking 'Kew A Certificate', Ref: 5056, Circa 1947](https://images1.bonhams.com/image?src=Images/live/2018-08/29/94522728-1-5.jpg&width=960)
Bonhams : Rolex. A very rare stainless steel manual wind bracelet watch with Kew Certification and 'Especially Good' result Oyster Speedking 'Kew A Certificate', Ref: 5056, Circa 1947
![Bonhams : Rolex. A very rare stainless steel manual wind bracelet watch with Kew Certification and 'Especially Good' result Oyster Speedking 'Kew A Certificate', Ref: 5056, Circa 1947 Bonhams : Rolex. A very rare stainless steel manual wind bracelet watch with Kew Certification and 'Especially Good' result Oyster Speedking 'Kew A Certificate', Ref: 5056, Circa 1947](https://images1.bonhams.com/image?src=Images/live/2018-08/29/94522728-1-2.jpg&width=960)
Bonhams : Rolex. A very rare stainless steel manual wind bracelet watch with Kew Certification and 'Especially Good' result Oyster Speedking 'Kew A Certificate', Ref: 5056, Circa 1947
![Welcome to RolexMagazine.com...Home of Jake's Rolex World Magazine..Optimized for iPad and iPhone: Rolex "Kew A" Certificate Welcome to RolexMagazine.com...Home of Jake's Rolex World Magazine..Optimized for iPad and iPhone: Rolex "Kew A" Certificate](http://4.bp.blogspot.com/_Cv-0TBEhWVE/SC_A5pbkrlI/AAAAAAAAA1Q/KQry_uHeKYY/s800/KewA.jpg)
Welcome to RolexMagazine.com...Home of Jake's Rolex World Magazine..Optimized for iPad and iPhone: Rolex "Kew A" Certificate
![Bonhams : Rolex. A very rare stainless steel manual wind bracelet watch with Kew Certification and 'Especially Good' result Oyster Speedking 'Kew A Certificate', Ref: 5056, Circa 1947 Bonhams : Rolex. A very rare stainless steel manual wind bracelet watch with Kew Certification and 'Especially Good' result Oyster Speedking 'Kew A Certificate', Ref: 5056, Circa 1947](https://images1.bonhams.com/image?src=Images/live/2018-08/29/94522728-1-6.jpg&width=960)