The Invincible Six (1970)
The Invincible Six is a 1970 American-Iranian adventure film directed by Jean Negulesco and starring Stuart Whitman, Elke Sommer, Curd Jürgens and Ian Ogilvy. Six international criminals attempt to steal the crown jewels of Iran but in the tradition of The Seven Samurai and The Magnificent Seven end up defending a village from bandits.
More at Wikipedia.