Seiko Cal. 5631 - 555

This Quartz model from 1967 features a 36mm Two-Tone case. With its 22mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-bf1e4379685e]

Also known as: Arnie

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1967

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