Seiko Cal. 3891 - 775

This Automatic model from 1969 features a 36mm Titanium case. With its 21mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-1e46ff2ceb8b]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1969

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