The fight, which takes place on the undercard of Floyd Mayweather's exhibition bout with YouTube star Deji, will be Fincham's first boxing outing in seven years.
The Love Island winner enjoyed a successful amateur career, winning 18 of his 26 fights for Eltham ABC.
The 31-year-old rose to fame through reality TV, but has once again returned to sport as he looks to make a splash in the professional ranks.
When asked what sparked his return to the ring, Fincham told Planet Sport: "A couple of years ago after a meeting with the British Boxing Board of Control, I got my licence.
"Didn't end up boxing due to other commitments and an injury and stuff like that. I went back to training and I said, 'look, I've got my licence and I want to make my debut'.
"I went and had a meeting with Francis Warren. The original plan was to box on a couple of small shows just to shake off the ring rust. But I can't believe he pulled this out of the bag.
"When I got the phone call, I was obviously expecting 'here's a date for one of our shows on whatever the undercard may be'. But when he said that, I thought 'oh my god, wow'.
"The original plan was just to get back out there, fight at York Hall or whatever. He obviously managed to pull this off as my first one since signing with Francis Warren."
Despite being out of the ring for almost a decade, Fincham will make his professional debut at the 17,000 capacity Coca-Cola Arena.
When asked whether he had any reservations about marking his first fight on a high-profile show, he said: "You'd have to be mad to turn that down.
"Even having your name in the same article that Floyd Mayweather is in, it's surreal. It's really exciting and it's a massive opportunity as well. A massive stage to have your debut on. I'm absolutely buzzing."
Fincham believes fans will be shocked by his level of skill in the ring, adding: "I can adapt. I think that comes with a bit of experience.
"I think people are going to be shocked. It won't look like I've just stepped in from reality TV, it will look like this geezer knows what he's doing. And I'll be able to adapt to anything that's in front of me.
"That's part of being from the amateurs really. Sometimes you turn up to shows as a spare and you'd get on the show and you'd fight. Sometimes you'd fight three times in a week against three different boys.
"I can adapt, I wouldn't say I'm one style. And also, you've got to remember that the pro game is a lot different to amateur.
"Sometimes you might settle into a new style because amateur is very pitter-patter and very counter-punchy. Whereas pros ain't so much that. I'm still sort of discovering that a bit more now. Training as a pro."