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Some specifications for this reference are on file; the record is incomplete.

Seiko · Prospex

Tuna

Ref. 7549-7009 — “Golden Tuna

discontinuedFirst quartz professional 600mPartially documentedLast reviewed Not yet reviewed

Overview

Nickname
Golden Tuna
Production
1978–1985
Era
First quartz professional 600m
Status
discontinued

Case

Case diameter
49mm including shroud
Case material
Titanium case with a titanium-nitride-coated shroud, giving the gold colour
Construction
Monocoque titanium case within a coated outer shroud
Bezel
Unidirectional 60-minute
Crystal
Hardlex
Crown
Screw-down crown at 4
Water resistance
600m, saturation rated

Dial & Hands

Dial
Black
Lume
Tritium
Lume type
Tritium

Movement

Movement
Quartz
Caliber
7549
Manufacturer
Seiko
Winding
quartz
Complications
Date

Bracelet & Strap

Strap options
Vented polyurethane dive strap