Yellow gold is pure gold
Wrong. The gold edition is 18 carat gold which means it contains gold and other metals including likely silver. 18 carat rose gold contains gold, silver and copper in addition to other materials. 24 carat gold is 23,75 carats usually of gold. Pretty bloody useless for a watch and strap as its a bit too bendy. So an 18 carat rose gold item has the same amount of gold as 18 carat yellow gold. I dunno, kids these days.