No time to check your figures, but I'm sure something's wrong. Take just 1 Patek for $300K and try to do the math how many Apple wathes you can buy 300K. And I was talking just about ONE watch just from ONE brand....

Apple Watch Made Up 80% Of The Smartwatch Market & Is A Good Lesson For Creating Relevancy With Consumers
Let's analyze what Apple's record sales mean & what both the traditional and connected technology watch industries can learn from it.
www.ablogtowatch.com
I can’t recall exactly where I got that figure from. However, the article linked above does mention Swiss watch exports amounting to about CHF5.1 billion in the last 3 months of 2016. I am simply multiplying that by 4 (since I assume watch sales would be less seasonal compared to say, iPhones), but I also remember reading in another article that the US watch market was suffering from an inventory glut.
So it stands to reason that the dollar sales of Swiss watches would not have grown much these few years. I am also assuming that the proliferation of Apple watches will eat into the sales of cheaper Swiss watches somewhat, and that higher end models (like your 300k watch) are more the exception than the norm.
In short, I have reason to believe the Swiss watch market is nowhere near as big as people make it out to be. Plus, it’s more or less a mature market, while the Apple Watch is still in its infancy with so much more room to grow.
Not that I get some sort of grim satisfaction from seeing one industry after another being marginalised by Apple, but as I have said time and time again, one underestimates Apple to their own detriment. The only thing the Swiss watch market can do is to probably retreat into the premium end of the market where Apple doesn’t deal in, and that’s another problem in itself.