2019 Seiko Marine Master Professional “Tuna” 7C46-0AG0 in a 47mm case, featuring a JDM and English date-dial. This watch has been fully tested in good working order with a new battery installed (Sep 2026).

Caseback Serial Number: 990044 (September 2019)

The crystal is clear and free of scratches or mars. The matte black dial is gorgeous and features a Kanji and English date wheel. The original uni-directional rotating bezel is clean with light marks consistent with careful use. The outer shroud is beautiful with a few marks associated with diving use. The shroud screws are clean and crisp. The caseback shows light wear.

Includes a new, unworn Seiko JAPAN Z22 rubber strap with a Seiko Steel-Z buckle. The original strap is also included for provenance.