Seiko Cal. 3851 - 402

The Seiko 3851-402 represents an important milestone in Seiko's 1975 lineup. With its 21mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-595b613d1ad5]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1975

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