Seiko Cal. 6668 - 631

This Hand-Winding model from 1978 features a 46mm Titanium case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-5cb31b6b9798]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1978

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