An interesting thread of comments sprouted over the weekend on this post, which made reference to the types of plating used on Omega movements.
Click here to join in the discussion.
I have made arrangements with a fellow watchmaker to subject some old-stock Omega bridges to a standard jeweler’s gold test later in the week and will report back here with our findings.
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I don’t have a lot of experience with gold tests but If this is a standard acid test, the plating may not be thick enough to determine whether it is gold or not. Acid typically burns through non-pure gold plating very fast and begins to work on the underlying metal. Clearly rose gold plating cannot be pure or it would be “gold” colored. I am looking forward to the results however.
Great point J.Peter. Definitely a factor to be taken into consideration.
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[...] Last week I mentioned that I would carry out some tests with a fellow watchmaker to confirm whether or not the rose-coloured plating on vintage Omega watches contained any gold, as a follow up to a discussion that sprouted off of this post on the Omega 321. Following are the results from the samples we tested. [...]
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