Floyd Mayweather buys watch for $18 Million. They don’t call him Money Mayweather for nothing. Floyd has money and he knows how to spend it. The watch he just purchased is called “the billionaire’s watch” with a $18 Million dollar price tag. One thing you can always say about Floyd Mayweather is that he is a man who enjoys his money. Bling Bling, every time I open my eyes! Check out his bling below.