Thread: gold plating symbols

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  1. #1
    Member ltri's Avatar
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    gold plating symbols

    I have a question about gold plating symbols on CCCP watches because I have 4 of them. does the number mean microns or does it mean the karat. It seems like it means the karat because the ones with the Au 20 are a darker yellow then the other ones. the one with just the AU seems to be the lowest type of gold plating because it is lighter in color than even the one that has AU 10.
    My last question is, what would the symbol on a solid gold cased USSR watch look like
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  2. #2
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    Re: gold plating symbols

    As far as I remember, AU10 represent 10 microns. Could it be aging or excess polishing that causes the lighting ?

    I have these strange symbols..



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  3. #3
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    Re: gold plating symbols

    I have several gold Poljots, they are marked on the back .858 and have a star with a hammer and sickle on them, plus another weird looking symbol I cant make out

  4. #4
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    Re: gold plating symbols

    The dimension denoted by "microns" is the thickness of the gold shell over the base metal core.

    The difference in color is the result of the different amount and type of alloy material used, copper will tends toward a redder or greenish tint, silver or other white metal will tend toward a paler color. So, two 10 karat gold cases can have two totally different colors, depending on the alloy.

    The ".858" on a case back is the actual ratio of gold to alloy material (multiply by 100 to get the percent), if it is next to or near a hallmark. .858 is approximately 20 karat gold.
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    Re: gold plating symbols

    Quote Originally Posted by tshirtlarry View Post
    I have several gold Poljots, they are marked on the back .858 and have a star with a hammer and sickle on them, plus another weird looking symbol I cant make out
    ".858"??

    Are you sure it's not .585?

  6. #6
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    Re: gold plating symbols

    Sorry it is .585 typo

  7. #7
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    Re: gold plating symbols

    Quote Originally Posted by tshirtlarry View Post
    Sorry it is .585 typo
    14 karat gold, then.
    Parit enim conversatio contemptum; raritas conciliat admirationem.- Lucius Apuleius
    est necessry, accurate ad secundo? - Lysander magna
    iustum est horologium - Obscurus Genius

  8. #8
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    Re: gold plating symbols

    Correct 14k gold.

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