According to author Clive Cussler, Dirk Pitt wears an original 1960s DOXA Sub 300T, while Dirk's son,
Dirk Pitt Jr., wears the 2002 reissue of the 300T. Clive Cussler currently wears
the larger DOXA Sub 5000T and his son, Dirk Cussler, wore the 2002
reissue 300T before moving to the 750T.
Clive Cussler Collector's Society