Seiko Cal. 3831 - 677

This Automatic model from 1991 features a 40mm PVD Black case. With its 19mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-27dcb96c5698]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1991

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