Seiko Cal. 3871 - 100

This Spring Drive model from 1976 features a 45mm PVD Black case. With its 19mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-ba10539d9b29]

Also known as: Rally, Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1976

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