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The Seiko Darth Tuna Marine Master Dive Watch SBDX013
The SBDX013 - An Icon Wears Black The Seiko Tuna is one of the most iconic wristwatches today. The tuna style watch took over 7 years to design. They started this long design process in 1968 when a saturation diver complained that his Seiko watch couldn't take the abuse. Seiko had just gotten into the dive market three years before. The original Seiko Tuna was released in 1975 by a design team lead my Ikuo Tokunaga. That watch had a lot going for it, so much so that Seiko was awarded 20 patents. Later, in 1978, Seiko developed the first saturation...