Seiko Cal. 6670 - 431

The Seiko 6670-431 represents an important milestone in Seiko's 1967 lineup. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-b4be5c2c8c3d]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1967

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