Seiko Cal. 3890 - 865

The Seiko 3890-865 represents an important milestone in Seiko's 1981 lineup. It features a Silver dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-0b93da920f9a]

Also known as: Sumo, Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1981

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