Chris Brown Is Getting REALLY SERIOUS . . . About His New LATINA/ASIAN Girlfriend . . . He Bought Her A DIAMOND ROLEX For Christmas!! (PICS)

Chris Brown may FINALLY be getting over Karrueche - cause he's got a REPLACEMENT CHICK. For the past 3 months Chris Brown has been dating LA model Krista Santiago - her ethnicity is Asian nad Latina.

Many people thought that Chris wasn't SERIOUS about her, but it turns out that HE IS.

Dude bought her a ROLEX WATCH with diamonds . . .

Here is her opening her Christmas gift:

Here ar ethe two of them together n the club last month:

Here's the girl: