Seiko Cal. 5220 - 778

This Automatic model from 1978 features a 39mm Titanium case. It features a Navy dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-06b773fe12e9]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1978

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