Seiko Cal. 3816 - 381

This Quartz model from 1972 features a 37mm Stainless Steel case. With its 21mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-f6bab78cf570]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1972

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