Floyd Mayweather has taken his watch-obsession to the next level, gifting his five-week-old grandson an 18k yellow gold diamond-encrusted Rolex Oyster Perpetual Datejust valued at $45,000.

While that might seem like an extravagant gift for a baby, it's chump change compared to Mayweather's own $18 million "Billionaire Watch," which was made by Jacob & Co. in 2015. The boxer's love for timepieces has been well documented — in 2018 he took to Instagram to reveal his wildly expensive collection of 41 watches.

So it stands to reason that when his daughter Yaya and rapper NBA Youngboy welcomed their son, Kentrell Jr last month, Mayweather wanted to begin his grandson's watch collection in style. After all, this is the man who claimed he packs 10 different watches on a ten-day trip.

The face of the custom diamond-encrusted watch is as big as the baby's fist. Yaya shared the picture of Kentrell’s Rolex on her Instagram story, with the caption, "KJ's papa got him his first Rolex."

The Rolex Oyster Perpetual Datejust is a certified, self-winding chronometer wristwatch that launched in 1945. It was the first self-winding chronometer wristwatch to indicate the date in a window on the dial. Today, it exists in a variety of sizes from 28mm to 41mm, in stainless steel, two-tone gold, and solid gold versions. Notable wearers in history include the 14th Dalai Lama, Martin Luther King Jr., and Michael Jordan. And of course, Kentrell Jr. — as you can see below.

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