a link might be helpful..long week. http://www.ebay.com/itm/18kt-GOLD-R...360333371?pt=Wristwatches&hash=item2a39eb123bPurchases made through these links may earn this site a commission from the eBay Partner Network
I've seen multicolor gold like that in Omega Museum they call it "Compression" Certainly a novelties and technological breakthrough at the time in 60's (much like ceragold or Sedna now). No clue on the value..... However the style is not in high demand today.
The above shots are less flattering of that style IMO and probably more accurately reflect what it would look like under normal lighting. It reminds me of some old relic dredged up from the depths of the sea floor after many years of corrosion. I might be interested if the price was dropped by at least a third.