Dunhill dating system

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case serial number and British hallmark date letter, were, for whatever reason, not available.Similarly with early Rolex Oyster cases, there should be a pattern of increasing patent numbers mentioned as the years go on.

In the early 1950s, a system of date stamping was introduced for Oyster cases, with the quarter of the year in which the watch was produced indicated by a Roman numeral, after which the last two digits of the year were given in Arabic numerals.Here, it should be possible to identify a subject and create a pool of knowledge relating to it, forming a lasting record that enthusiasts can keep returning back to whenever they wish.The stamps to be found inside Rolex case backs have always fascinated collectors, not least because there is a definable progression to them, but also because of the number of inconsistencies and overlapping stamps in circulation that shouldn’t theoretically exist.Presumably to avoid confusion among their existing customers, the new company then went through quite a long stage of having both Rolex and W & D stamped dually into its case backs.When more additions to the accompanying chart have been made, we should get a fairly definitive record of when the W & D stamp was finally laid to rest and only the Rolex name stated on its own, but provisionally, it seems likely that this phasing out began in around 1918 and was all but completed by mid-1920.

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