Seiko Cal. 3864 - 878

The Seiko 3864-878 represents an important milestone in Seiko's 1974 lineup. With its 19mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-5bdd5c4e3bc9]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1974

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