Omega's white gold

[startrolexendrolex]

I'm wondering what Omega white gold is called? Also are they like the rolex gray gold? Or are they coated white over the yellow gold?

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[whiteibex]

It's rightfully called "white gold", usually "Au750" which is 18K, as indicated on the inside of a lug.

[startrolexendrolex]

Originally Posted by whiteibex

It's rightfully called "white gold", usually "Au750" which is 18K, as indicated on the inside of a lug.

Thanks for the responds. What i meant was that white gold such as rolex are white by mixing different metals and not plated white over yellow gold. I'm interested to know if Omega does their white gold the same way.

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[whiteibex]

It is not just Rolex that does that. Coloured gold used in jewelry (whether yellow, white or rose) are alloys by definition, e.g. Au750 white gold is 75% pure gold whilst the remaining 25% could be palladium/silver/nickel to make it "white". It could be that Rolex and Omega use different alloys to achieve different hues, but technically speaking it is still 18K gold.

Solid/Plated gold is a different topic.

[MCMartiny]

I think the OP's question is a bit more subtle than gold plated vs. solid gold. Historically white gold alloys often contained a fair amount of silver for the 25% non.gold and had a slightly yellow tint which became more predominant over time. Solution was (and still is for a lot of WG jewellery) to rhodium plate the white gold to give it a silvery shimmer free of any yellow tint. Problem is the plating will wear off over time and will need to be renewed every 5 to 10 years.

These days most watch manufactures including e.g. Rolex and Patek use "grey gold" which is a 18k white gold alloy that typically contain a large amount of palladium for the remaining 25%. This yields a greyish white gold which is fairly dense and more durable than YG, and which will not yellow over time.

I do not know about Omega WG, but I would expect they also use a grey gold alloy these days.

[startrolexendrolex]

Originally Posted by MCMartiny

I think the OP's question is a bit more subtle than gold plated vs. solid gold. Historically white gold alloys often contained a fair amount of silver for the 25% non.gold and had a slightly yellow tint which became more predominant over time. Solution was (and still is for a lot of WG jewellery) to rhodium plate the white gold to give it a silvery shimmer free of any yellow tint. Problem is the plating will wear off over time and will need to be renewed every 5 to 10 years.

These days most watch manufactures including e.g. Rolex and Patek use "grey gold" which is a 18k white gold alloy that typically contain a large amount of palladium for the remaining 25%. This yields a greyish white gold which is fairly dense and more durable than YG, and which will not yellow over time.

I do not know about Omega WG, but I would expect they also use a grey gold alloy these days.

Thank you, yes! That's my question. Thank you for responding.

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