Seiko Cal. 3872 - 391

This Automatic model from 1968 features a 36mm PVD Black case. With its 21mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-5b4fb753c7d6]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1968

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