This article tries to explain it.
Interesting, but I have thought about it.
The exclusive gold watch is a marketing exercise. It bathes the lower-priced watches in a golden light, and makes the entire line aspirational. It matters not that most people cant afford the $10,000 model its luster and appeal will rub off on the $350 and $500 versions.
Its obvious Apple is unconcerned about the number of gold watches it sells. Its exclusive. Its not about volume. Even if Apple sells tens or hundreds of thousands, the amount of revenue will be peanuts compared to Cupertinos established businesses. What matters is who buys these high-end wearables. Or more likely, who Apple gives them to in Oscar night goodie bags and as product placements.
Its not about selling $10,000 watches. Its about selling millions and millions of $350 ones.
This is how the luxury market works.
Read more at http://www.cultofmac.com/315436/why-the-gold-watch-is-essential-to-apples-plan/#Vt0L6zMPrW6VGUKl.99
Interesting, but I have thought about it.