Kenneth Choi wears a Rolex Submariner

Chester Ming is one of the brokers who got rich early at Stratton Oakmont. Kenneth Choi plays him as part of Jordan Belfort's original Long Island crew, the penny-stock salesmen who turned a boiler room into fortunes and then into criminal cases. The film mostly keeps him at a bullpen desk, phone headset on, both palms raised in the middle of a pitch.

The watch is a yellow gold Rolex Submariner. The Submariner began in 1953 as a steel dive watch built to go underwater, and the gold version inverts the idea: the same tool watch recast in precious metal, made to be seen rather than submerged. On a junior broker with sudden money, the gold one fits, a diver nobody intends to dive with.

The identification is thin. One French watch-spotting site logged the gold Submariner on Choi's wrist, and on screen the watch is clearly gold-cased, though it never turns its face to the camera long enough to settle the exact model.