Description

1979 Seiko Tuna Professional 300m Quartz 7549-7010 SBBN001 in a 47mm stainless steel case, featuring the JDM Kanji Day-wheel, powered by the Seiko 7549 quartz movement. This Tuna has been serviced and battery replaced in September 2026 and is ready for wear or to be added to a collection.

Case Serial Number: 921235

The sapphire crystal is clear and free of scratches or edge-chips. The original dial and hands are beautiful, with a nice patina to the original lume. The dial has no significant discoloration or stains. Overall the case is in good, vintage condition, with marks consistent with use. The bezel rotates and clicks as designed.

This Seiko is paired with a new, unworn Seiko 22mm Diver rubber dive strap, with Seiko stainless steel buckles and keeper.