Seiko vintage LCD watch - Ansel Elgort - Billionaire Boys Club
We can't ID the exact brand or model number yet, but based on the images and the shape of the white front and metal case, it could be a Seiko A914-5A09 digital LCD watch with Alarm and Chronograph function.
The movie is set in the 1980s, hence the appearance of a vintage Seiko wristwatch in the film.
Other wristwatches seen in the film are Rolex watches.
Billionaire Boys Club is based on the real life Billionaire Boys Clubactive in Southern California during the 1980s, and the film stars Ansel Elgort as Joe Hunt, the group leader and financial expert; Taron Egerton as Dean Karny, a tennis pro; Kevin Spacey as Ron Levin, a Beverly Hills high roller and Jeremy Irvine as Kyle Biltmore, Scott’s brother and one of the members of the Billionaire Boys Club.