Seiko Cal. 3887 - 379

The Seiko 3887-379 represents an important milestone in Seiko's 1972 lineup. With its 18mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-3a03e3db42aa]

Also known as: Sumo, Shogun

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1972

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