Seiko Cal. 3812 - 487

This Hand-Winding model from 1991 features a 34mm Stainless Steel case. With its 19mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-c51eb3d2e271]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1991

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