What does the man with the $195 million deal do for his own birthday?! By getting a $500k Richard Mille watch!

TMZ Sports has heard that the Boston Celtics star wanted to get a new watch to celebrate the big 2-4. He went to famous jeweler Eric Da Jeweler to put together the deal.

Also, that’s not just any watch; it’s a Richard Mille, which is famous for its unique designs, high-quality materials, and sturdy cases.

Tatum bought the all-white RM055 Bubba Watson watch with a grade 5 titanium case band and back bezel. The movement is skeletonized.

We’ve been told that it cost JT $500k!

Though that amount of money may seem large, the 6-foot-8 big man has already made more than $57 million since the Celtics picked him up in the 2017 draft.

Eric told us that he sent the special gift to JT in Boston the night before his big day. This gave Tatum time to enjoy his present before the Grizzlies-Celtics game.

Tatum’s 4-year-old son Deuce also gave him a great present: he made him a birthday movie with all of his favorite childhood spots in St. Louis.