Seiko Cal. 6668 - 391

This Spring Drive model from 1990 features a 38mm Gold-Plated case. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-9629006728c8]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1990

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