Seiko Cal. 5231 - 447

This Spring Drive model from 1981 features a 45mm Titanium case. With its 18mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-02b14f081fac]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1981

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