Seiko Cal. 5231 - 720

This Automatic model from 1976 features a 37mm Gold-Plated case. With its 19mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-5569f409ca36]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1976

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