Seiko Cal. 3890 - 860

The Seiko 3890-860 represents an important milestone in Seiko's 1987 lineup. With its 20mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-2407a9e37246]

Also known as: Sumo, Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1987

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