Seiko Cal. 5631 - 716

The Seiko 5631-716 represents an important milestone in Seiko's 1978 lineup. With its 20mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-a6c7f4e4fd96]

Also known as: Pogue

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1978

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