This Seiko is a completely overhauled by Seiko Authorized Service including new crystal, new Seiko Z22 strap, reapply lume, replaced gaskets and resealed watch. Diver’s watch comes with a 2 YEAR WARRANTY and copies of all Watch Repair and pressure test necessary for any warranty work. The overhaul was $490 on July 2023, with no aftermarket parts.

The “Suwa dial” refers to the use of the Suwa stylized “S” symbol that was used to designate that a watch was made at the Seiko Suwa factory in Japan. The Suwa dial was used from 1976 to about 1981, and has the Suwa symbol just below the “Water 150m Resist” text. It also has the text “Japan 6309-704L T” along the bottom edge of the dial and the case back will have “Japan A” on it.