Quote:
Originally Posted by RABAUKE
They are, I suspect they are close to the COSC standard but I was questioning Blksnowflakes " I have had ran +1/2 seconds fast over a month or so with only one losing 3 seconds a week. " That seems like it's two small a margin to even measure.....my Rolex gains a couple of minutes a month, same for the wife's.
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Agree. A second or two over a month is quartz accuracy.