Seiko Cal. 3871 - 866

This Spring Drive model from 1978 features a 34mm Titanium case. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-f88bde59af56]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1978

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