Seiko Cal. 5230 - 771

This Spring Drive model from 1972 features a 45mm PVD Black case. With its 19mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-f77039fe3a57]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1972

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