Originally launched in 1975, the O.G. Tuna is the heavily shrouded and entirely dive-ready reference 6159-7110, which was an incredibly cutting-edge design at the time. Since then, the name has graced various iterations of Seiko’s extra-chunky dive watch, including those with quartz movements, the much-loved SBDX005 and SBDX011, the Seiko Arnie, the “Baby Tuna”, and many many more. While nicknames serve as a vital shorthand for any and all Seiko enthusiasts, this one’s special. For a tough, burly, and entirely unapologetic dive watch that sits loud and proud on your wrist, it’s tough to out-dive a Tuna.
– James Stacey
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