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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
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Rolex Blank 1960 Warranty Paper Unfilled guarantee, DOCUMENT CHRONOMETER CERTIFICATE 6538, 5512, 6241, 5500, 6542, 1675
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