Worn by: Brad Pitt as Cliff Booth
Reference: Citizen Bullhead Chronograph
Brand: Citizen
Aging stunt double Cliff Booth wore a very period-appropriate vintage Bullhead chronograph watch from Citizen in Quentin Tarantino's epic dramedy set in 1969 Hollywood. The watch features a gold-plated case, matching gold dial with black subdials, and motorsport-inspired tachymeter ring. The two top-mounted pushers give the watch its "Bullhead" designation—reminiscent of both bull's horns and hand-held stopwatches used to time racing laps. While Citizen has discontinued the model, the brand offers modern versions in its current Tsuno collection.

Source: https://teddybaldassarre.com/blogs/brands/movie/references/watches