WG is for those who want to wear jewelry in a way that doesn't scream GOLD to everyone else. Collectors want it because it is uncommon,even rare.

 

There really is no set premium for white over yellow gold or steel. A lot depends on the price of gold at a particular time and the overall gold weight. Any collector premium would be based more on the relative rarity of a particular model in WG. The "C" cases are a little more common in WG then say a Ref. 167.005 pie-pan or earlier Ref. 2852 models. However, all of these are rare.

At a distance, it would be difficult to see a difference between white gold and steel. Although, put them side by side and the difference would be very obvious. White gold has a much "warmer" look than steel. You can see this effect sometimes on the C cases in steel that have white gold bezels. I'm not even going to try to illustrate this as the difference is subtle enough that it's not going to show, even on a good internet picture.

Hope this helps,
gatorcpa

 

Very keen to see what that platinum on mesh bracelet sells for at Christies this month, the last few WG models have exceeded estimate by a significant margin, no idea where a PT950 one stands.

 

I would like to add that the seller here, Ronnie, is a reputable seller that I would not hesitate to buy from.