Seiko Cal. 6391 - 893

Seiko 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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