Seiko Cal. 4431 - 765

This Kinetic model from 1968 features a 38mm Hardlex-Coated Steel case. It features a Silver dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-8d0eb2f87895]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1968

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