Seiko Cal. 5658 - 830

This Spring Drive model from 1979 features a 40mm PVD Black case. With its 21mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-f5bfaa8c0daa]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1979

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