How to distinguish Platinum, White gold, Stainless Steel by naked eyes?

[iloveomegawatch]

Originally Posted by kilyung

Owning watches in all three metals, I find WG is much easier to differentiate from SS/PT. There's always a slight yellowish tint to WG. There's no such thing as naturally occurring WG, it's just a mixture of alloys and YG.

Polished SS is virtually impossible to differentiate from polished PT but I find that brushed PT appears 'brighter' than brushed SS.

But if there is nothing to compare next to this watch, can you tell the different? or just take a guess ?
For example if it was not a rolex but Patek or some other brands that you do not know much about?

[kilyung]

Originally Posted by iloveomegawatch

But if there is nothing to compare next to this watch, can you tell the different? or just take a guess ?
For example if it was not a rolex but Patek or some other brands that you do not know much about?

Yes, I believe I could tell the difference without a comparable next to it. But then again, I've been staring at precious metal watches for a long time and know most mainstream brands.