Seiko Cal. 5631 - 153

This Spring Drive model from 1965 features a 45mm Hardlex-Coated Steel case. With its 19mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-3c2c8a81d529]

Also known as: Pogue

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1965

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