Rocky's Love Affairs (1985)

During World War II, a valuable pendant is taken into hiding to protect it from those who would use it for evil. Years later, men are still trying to retrieve the pendant, now separated into two parts for safekeeping, and will stop at nothing to get their hands on it. A young tournament fighter who is traveling to a big event unwittingly becomes involved in the recovery of the mysterious pendant.

Unfortunately the movie Rocky's Love Affairs is not yet available on HBO Max.