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Model 16013
Does anyone know what the specs are for this watch as it relates to plus or minus seconds per day. What would the COSC standard be for this watch or does Rolex have the same standard all around.
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Same as all the cosc standards for rolex's movement is a 3035 calibre
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COSC did not exist until after 1973. What COSC did was standardize the Swiss standard at -4 to +6 seconds per day (roughly... it really is more complicated than that)..
So, any watch after 1973 that has Chronometer on the dial had to have met those standards and been tested.. From ~1960 until COSC Standards in 1973, the "chronometer" standard was -1/+10 |
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