Seiko Cal. 3817 - 531

This Kinetic model from 1976 features a 40mm Two-Tone case. It features a Green dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-a88e30aaf53a]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1976

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