Within the early 2000’s Seiko replaced the -7010 series with the ref.7C46-7011 or ref.SBBN007, which remained a staple within the Tuna lineage until its substitute several years later by the ref.7C46-0AC0, which came in two versions, the SBBN015 and the SBBN017. Subsequently, the Seiko Tuna-Can diving instrument came in three flavors. Seiko is the watch …
