Seiko Cal. 3815 - 639

This Kinetic model from 1966 features a 37mm PVD Black case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-e49811eab117]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1966

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