Seiko Cal. 3861 - 403

This Spring Drive model from 1972 features a 39mm Titanium case. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-b701f1cfd0b4]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1972

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