Seiko Cal. 3877 - 233

The Seiko 3877-233 represents an important milestone in Seiko's 1975 lineup. With its 21mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-31feece1fe4d]

Also known as: Tuna, Emperor

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1975

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