Seiko Cal. 4428 - 283

This Quartz model from 1976 features a 37mm Two-Tone case. It features a Black dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-2f8fd0e59dc3]

Also known as: Tuna, Bullhead

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1976

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