Seiko Cal. 5631 - 609

This Solar model from 1978 features a 34mm Stainless Steel case. With its 21mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-46cbf7cbcf7c]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1978

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