Seiko Cal. 6231 - 583

This Kinetic model from 1965 features a 40mm Two-Tone case. It features a Black dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-0c9ad28466c3]

Also known as: Bullhead, Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1965

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