[Cookingboy]

Actually even the tools Patek uses to make their watch are made in house, mostly by hand.

Watchmaking and does take a tremendous amount of labor, a watch made by a sweatshop in China will simply not have the same precision and reliability, let alone the fit and finish of its movement inside.

You are confusing complexity with ease of manufacturing. Some very complex objects are actually much easier to mass produce, such as a family sedan or a CPU, simply because we've gotten very, very good at it by now and the economy of scale makes it easy and cheap.

But for a watch, since there is no such economy of scale, and the customers demand those watches to be hand made, then the amount of man hour and labor that's put into making a perpetual calendar way out weights that of a car.

Is there a huge amount of price inflation caused by marketing? Absolutely. But even a top tier Chinese replica of a Patek can cost a couple thousand dollars, while not being the same quality inside.