there are several “Tuna Can” divers in Seiko’s Prospex (Professional Specifications) lineup, including those with Kinetic, quartz, Spring Drive and automatic movements. The top grade Marinemaster ...

The new "Tuna", a recreation ... Both are powered by Seiko’s high-beat movements, a nod to the 1968 model, which contained a high-frequency automatic movement. The 1975 re-creation is water ...