Seiko Cal. 6631 - 845

This Automatic model from 1968 features a 37mm Stainless Steel case. With its 18mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-9465d7e4df71]

Also known as: Shogun, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1968

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