Dugena Deepstar Travel 5513 ran from 1962 until

5513 ran from 1962 until 1989

This indicates that the luminescent material on the numerals is tritium (Hydrogen-3)

and features a bright blue date track

the Mark XVI feels linked to IWC's long line of function-driven pilot's watches

We look at watches like the Submariner or the GMT

Dugena Deepstar Travel 5513 ran from 1962 untilThe 1970s are full of fun and funky watches like this one, which marry features of dive watchesa chunky waterproof case crowned by a rotating bezelwith a chronograph. Called chronodivers, they proliferated in the decade, when sporty chic fashions were all the rage. But their distinctive looks and often sprightly color ways have brought them renewed popularity among todays collectors. This one bears the name Dugena on the dial and is known as the