Seiko Cal. 5230 - 156

This Spring Drive model from 1979 features a 37mm Two-Tone case. With its 19mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-622ce5adf8a5]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1979

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