Apple Gold ➝

Dr. Drang regarding a tweet by @SumocatS that points to a patent application that would allow Apple to use less gold by volume in their 18k gold:

Apple’s gold is a metal matrix composite, not a standard alloy. Instead of mixing the gold with silver, copper, or other metals to make it harder, Apple is mixing it with low-density ceramic particles. The ceramic makes Apple’s gold harder and more scratch-resistant—which Tim Cook touted during the September announcement—and it also makes it less dense overall.

The karat measure of gold is based on the mass fraction. One hundred grams of 18k gold has 75 grams of gold and 25 grams of other material. If that “other material” is a low-density ceramic, it takes up a bigger volume than if it’s a high-density metal. Because the casing of a watch is made to a particular size (i.e. volume), not to a particular weight, the Watch will have less gold in it than an 18k case made of a conventional alloy.

How much could this will effect the final price for the Apple Watch Edition? How would the press react if Apple announced pricing that seemed ridiculously low for an 18k gold watch?

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