Seiko Cal. 3881 - 641

This Spring Drive model from 1974 features a 34mm Titanium case. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-d82ec867d07c]

Also known as: Turtle, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Silver

Jewels

35j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1974

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