Seiko Cal. 3818 - 841

This Spring Drive model from 1981 features a 36mm Stainless Steel case. With its 18mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-46ab78d48cfd]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1981

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