Seiko Cal. 5658 - 554

This Quartz model from 1976 features a 36mm Hardlex-Coated Steel case. With its 18mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-40d1af48bdb8]

Also known as: Helmet, Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1976

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