AP WG Difference

[itsinthebag]

I'm considering trading up to a WG RO but can't find any info on the WG mix that AP uses. I'm asking because the color of AP's WG is so different than that of PP and Rolex, and I'm concerned about what happens when I scratch my watch (its inevitable).

I understand PP and Rolex use grey gold to emphasize its not plated and how it's grey gold through and through. Is this the same with AP's WG? If so, it's pretty amazing how AP gets such a bright WG compared to the warmer grey gold on Patek and Rolex. Thanks in advance!