Seiko Cal. 3861 - 691

This Hand-Winding model from 1985 features a 38mm Hardlex-Coated Steel case. Powered by the 3861 caliber with 33j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-acdedee37534]

Also known as: Sumo, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1985

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