Seiko Cal. 6664 - 704

This Spring Drive model from 1970 features a 40mm Titanium case. With its 21mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-022c2f44d6f3]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1970

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