Seiko Cal. 6391 - 893

The Seiko 6391-893 represents an important milestone in Seiko's 1980 lineup. Powered by the 6391 caliber with 31j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-b8ade12bcfc7]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1980

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