Seiko Cal. 3879 - 840

The Seiko 3879-840 represents an important milestone in Seiko's 1968 lineup. With its 21mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-ba351cc9a868]

Also known as: Monster, Flighty

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1968

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