Tag: SBBN017
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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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Comments
That dial is just fntastic.







Very cool watch. I have always wondered about the bronze models. Is the caseback bronze as well? If so do…