Tag: SBBN017

  • Owner Review: Seiko Tuna SBBN017

    Owner Review: Seiko Tuna SBBN017

    In 1968 the Seiko management gave the order to Ikuo Tokunaga to develop “the perfect professional diver’s watch”. Seven years later he presented the first Tuna (6159-7010), this was the ancestor of the Seiko Tuna SBBN017. It was the first diver’s watch with a titanium monocoque case, a titanium shroud with ceramic coating to protect…

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