Seiko Cal. 3840 - 964

This Spring Drive model from 1985 features a 37mm Stainless Steel case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-a30ae389b749]

Also known as: Goldfeather, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1985

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