Michael Jordan, Giannis Antetokounmpo lift luxury watch start-up WatchBox to valuation nearing $1 billion

Michael Jordan has six NBA championship rings. He also likes watches.

The five-time NBA most valuable player, who now owns the Charlotte Hornets, joined a list of athletes to invest in WatchBox, a site that allows people to buy, sell, and trade luxury watches. Brands include Richard Mille, a favorite of NBA players.