Seiko Cal. 0726 - 557

This Spring Drive model from 1980 features a 36mm Stainless Steel case. With its 19mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-4fd8a9a8f86f]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1980

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