Seiko Cal. 3888 - 878

This Spring Drive model from 1968 features a 38mm Titanium case. With its 20mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-8f86dc48147f]

Also known as: Monster, Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1968

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