What is your definition of a Tuna?

[toxicavenger]

Originally Posted by vintage navitimer

A Tuna is a Professional Diver . . . unfortunately Seiko itself has eroded the name of a legendary series of watches by producing homage pieces with little in common other than a shroud.

Wrong, Seiko didn't do anything. The name "Tuna" was not one that Seiko created. Seiko just made a watch with a similar deign that is slightly smaller/cheaper/more manageable for a new generation of watch enthusiast.