It's always been a bug bear of the Dive Watch Collectors Forums...what did Cousteau wear? Normally the list goes Doxa, Blancpain - but as these pics prove, it's a lot more complicated than that. Look out for Falco and his Ploprof - it's just been reissued by Omega.

(FYI, Ol' Cyclo2000 wears a Doxa Sub 300T)